Timeline of contact tracing in the COVID-19 pandemic

From Timelines
Jump to: navigation, search

This is a timeline of contact tracing in the COVID-19 pandemic, mainly focusing on smartphone application software launches.

Sample questions

The following are some interesting questions that can be answered by reading this timeline:

  • What are some important events during the COVID-19 pandemic described on the timeline as a context?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Background".
  • What are some of the numerous contact tracing applications for mobile phone being launched during the pandemic?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Mobile app launch"
    • You will mostly see applications launched by official entities.
  • What are some of the several protocols launched to facilitate digital contact tracing during the pandemic?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Protocol introduction".
    • You will see a number of releases, including Exposure notification by Google and Apple Inc.
  • What are some of the numerous notable cases involving contact tracing and the issue of digital privacy?
    • Sort the full timeline by "Event type" and look for the group of rows with value "digital privacy".
    • You will see a number of events describing cases of digital privacy violation, most often by official entities.
  • Other events are described under the following types: "Database launch", "Education", " Manual contact tracing", "Notable case", "Organization", "Partnership", "Performance", "Program shutdown", "Protocol integration" and "Userbase".

Summary by year

Time period Development summary
2019 Interest in contact tracing begins late in the year, when the first case of COVID-19 is identified in Wuhan.
2020 Interest in contact tracing spikes to an all time high at a worldwide level. Digital contact tracing via smartphone apps is established as a new public-health intervention in many countries in this year.
2021 As of year, contact tracing is found to be effective in some countries like South Korea, Vietnam, Japan and Taiwan[1], but not very effective in many countries, often in the West.[2]

Visual data

Google Trends

The comparative chart below shows Google Trends data for Contact tracing (Topic) and Contact tracing (Search term), from January 2004 to March 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.[3]

Contact tracing gt.png

Google Ngram Viewer

The chart below shows Google Ngram Viewer data for Contact tracing, from 1900 to 2019.[4]

Contact tracing ngram.png


Wikipedia Views

The chart below shows pageviews of the English Wikipedia article Contact tracing on desktop, mobile-web, desktop-spider, mobile-web-spider and mobile app, from July 2015; to December 2020. An explosive growth of interest can be seen during the COVID-19 pandemic.[5]

Contact tracing wv.jpeg

Full timeline

Year Month and date (approximately) Event type Details Location
2019 December Background Contact tracing and medical surveillance begins in Wuhan, after a number of "pneumonia cases" related to a local seafood market is reported.[6] China
2020 January 23 Background The Government of China imposes a lockdown in Wuhan and other cities in Hubei in an effort to quarantine the center of the outbreak of COVID-19.[7] China
2020 January 23 "Vietnam diagnosed their first 2 COVID-19 cases (a father and son) on January 23." [8] "One of the most appreciated facts with regard to Vietnam’s countermeasures against the COVID-19 pandemic has been with regard to contact tracing which has gone up to three levels of contact tracing for any positive case which have been detected within the country. "[9] "realizing that an effective tracing system is the most critical component of the pandemic response, Vietnam immediately developed and implemented a thorough, accurate and centralized contact tracing system. Contacts for any person testing positive for the coronavirus are traced to three levels, and all of those people are tested immediately."[10] "Swift introduction of containment measures, combined with aggressive contact tracing, targeted testing, and isolation of suspected COVID-19 cases, helped keep recorded infections and death rates notably low on a per capita basis. "[11] Vietnam
2020 January 30 Background The World Health Organization declares the COVID-19 outbreak a Public Health Emergency of International Concern.[12][13]
2020 February 3 Mobile app launch Lithuanian based company Bitsens launches a coronavirus app, even when the virus has not reached Lithuania yet.[14] Lithuania
2020 February 11 Mobile app launch The Chinese Government launches coronavirus 'close contact detector' app. In order to make an inquiry, users are required to scan a QR code on their smartphones using apps like Alipay or WeChat. Once the new app is registered with a phone number, users must enter their name and ID number. Every registered phone number can then be used to check the status of up to three ID numbers.[15] China
2020 February Organization PathCheck is founded at MIT as a volunteer-led non profit organization[16][17] that develops COVID-19 apps for digital contact tracing.[18] Their original technology is based on the MIT Private Kit.[19][20] United States
2020 March 9 Digital privacy Google removes Iran's official COVID-19 detection app from Play Store after several users accused the Iranian government of using the app to collect phone numbers and real-time geo-location data.[21][22] Iran
2020 March 9 Mobile app launch The Colombian president announces the launch of an application for mobile devices that would help centralize information related to the spread, prevention and treatment of COVID-19 in the country.[23] Colombia
2020 March 11 Background The World Health Organization declares COVID-19 a pandemic.[24]
2020 March 12 Program shutdown Public Health England stops performing a contact tracing program, as widespread infections overwhelm capacity of contact tracers, as the program could handle up to 50 people per week.[25][26] United Kingdom (England)
2020 March 17 Protocol introduction The Temporary Contact Numbers Protocol (TCN Protocol) is introduced.[27]
2020 March 20 Mobile app launch Singapore launches the TraceTogether, an application aimed at working by exchanging short distance Bluetooth signals between phones to detect other participating users in close proximity of 2 meters. After giving consent during the set-up of the app, users need to turn on their Bluetooth, as well as enable push notifications and location permissions. It is developed by Singapore’s Government Technology Agency (GovTech) and the health ministry.[28][29] Singapore
2020 March 20 Mobile app launch Taiwan rolls out a mobile phone-based “electronic fence” that uses location-tracking to ensure people who are quarantined stay in their homes. The system monitors phone signals to alert local officials if those in home quarantine move away from their address or turn off their phones.[30] Taiwan
2020 March 20 Mobile app launch Sri Lanka launches MyHealth Mobile App, which requires users to record their location at the time of using the application. The app is programmed to disclose the stores location history information with the authorities to protect other users in case a user is infected.[31] Sri Lanka
2020 March 24 Protocol introduction BlueTrace is introduced as an open-source application protocol that facilitates digital contact tracing of users.[32]
2020 March 25 Mobile app launch Stopp Corona is launched in Austria by the Austrian Red Cross, in cooperation with other organizations. The app is aimed at tracing contacts for preventing the spread COVID-19 infections.[24][33][34] Austria
2020 April 1 Protocol introduction The Pan-European Privacy-Preserving Proximity Tracing protocol is introduced to facilitate digital contact tracing of infected participants.[35][36][37][38]
2020 April 2 Mobile app launch The Government of India launches Aarogya Setu, aimed at enabling people to assess themselves the risk of their catching Covid-19 infection. The app is available in 11 languages.[39] India
2020 April 3 Mobile app launch The Government of Peru announces launch of app that would allow users share their location in the event that they have tested positive for Coronavirus.[40] Peru
2020 April 4 Protocol introduction The Decentralized Privacy-Preserving Proximity Tracing is introduced as an open protocol developed in response to the COVID-19 pandemic to facilitate digital contact tracing of infected participants.[41][42]
2020 April 8 Mobile app launch Egypt launches mobile application to track both new coronavirus cases and those in contact with patients.[43][44] Egypt
2020 April 9 Mobile app launch The Afghan Ministry of Public Health and Ministry of Telecommunications and Information Technology launch COVID-19 tracing app corona.asan.gov.af, which provides health advice in English, Dari, and Pashto.[45][46][47] Afghanistan
2020 April 10 Technology introduction Google and Apple announce a joint effort to enable the use of Bluetooth technology to help governments and health agencies conduct contact tracing to reduce the spread of COVID-19, with user privacy and security core to the design.[48]
2020 April 11 Technology introduction "South Korea launched wristbands for those breaking quarantine because people were leaving their phones at home to trick government tracking apps"[49] South Korea
2020 April 14 Mobile app launch COVID-19 contact tracing app Corowarner is launched in Turkey, programmed to alert users instantly and anonymously if they had close contact with an individual in a market, pharmacy or bus who tested positive for the virus.[50] Turkey
2020 April 16 Mobile app launch IoT and connectivity network provider Nodle.io announces the launch of Coalition, a free contact tracing app that utilizes secure Bluetooth Low Energy (BLE) and cryptography to protect a user’s identity by generating random anonymous IDs.[51] United States
2020 April 16 Protocol introduction Nodle.io releases the Whisper Tracing Protocol white paper, along with the launch of contact tracing app Coalition. The protocol is intended to be a privacy first digital contact tracing tool developed for the 2020 COVID-19 pandemic.[52][53]
2020 April 17 Mobile app launch The Malaysian Communications and Multimedia Commission launches contact tracing app Gerak Malaysia, which is designed "to help the authorities in tracing and analysing users’ movement nationwide to contain the spread of the pandemic".[54] Malaysia
2020 April 21 Digital privacy A Australian Government Services minister announces laws to be introduced in the country with the purpose to strenghten user privacy.[55] Australia
2020 April 24 Mobile app launch ProteGO launches in Poland, becoming one of EU’s first official Covid-19 tracking applications. This version requires users to enter their data themselves for the purposes of health self-monitoring.[56] Poland
2020 April 26 Mobile app launch The Australian government launches a coronavirus tracing app, which uses Bluetooth signals to log when people have been close to one another. The app is based on Singapore’s TraceTogether software.[57][58] Australia
2020 April 27 Mobile app launch Mobile application "Act at Home" is launched in Ukraine. It is designed to maintain contact with the person and control the observance of obligatory self-isolation during the quarantine.[59] Ukraine
2020 April Background By this time, about half of the world's population is under lockdown, with more than 3.9 billion people in more than 90 countries or territories having been asked or ordered to stay at home by their governments.[60] Worldwide
2020 May 10 Notable case Zambian health minister Chitalu Chilufya praises sex workers in Zambia for helping to trace people who have contracted COVID-19 after a surge in new infections at the border town of Nakonde. Chilufya states "sex workers have been very co-operative and they are giving us all the leads we want."[61] Zambia
2020 May 12 Mobile app launch Salesforce launches coronavirus contact tracing platform for tracking exposure to COVID-19, available in Rhode Island, Massachusetts, Louisiana, California and New York City.[62] United States
2020 May 14 Mobile app launch The Indian technology ministry launches contact-tracing app for JioPhones.[63] India
2020 May 14 Mobile app launch Thailand's Center for COVID-19 Situation Administration (CCSA) announces tracing application Thai Chana (Thai Victory), aimed at being introduced to business operators.[64] Thailand
2020 May 19 Mobile app launch The E7mi application is launched in Tunisia. The app identifies and alerts users if they have been in close contact with someone having reported infection.[65] Tunisia
2020 May 19 Mobile app launch The Ministry of Health of New Zealand releases the NZ COVID Tracer app, with the purpose to support contact tracing in the country. The software emphasizes privacy and data security, being programmed to store information in the user phone and delet it after 31 days.[66] NZ COVID Tracer[67] New Zealand
2020 May 20 Protocol introduction The Exposure Notification (GAEN) system, originally known as the Privacy-Preserving Contact Tracing Project,[68] is introduced as a framework and protocol specification developed by Apple Inc. and Google to facilitate digital contact tracing during the COVID-19 pandemic.[69][70][71][72] The application programming interface is released to at least 22 countries around the world and is aimed to be used by nations' health authorities to build their own apps.[73] Worldwide
2020 May 26 Digital privacy Amnesty International uncovers "serious security vulnerabilities" in Qatari mandatory contact tracing app EHTERAZ, which is found to lack privacy safeguards and allows sensitive personal information to be uploaded to a central database so the authorities can enable real-time location tracking of users at any time.[74] Qatar
2020 May 28 Organization NHS Test and Trace is formed in England as a government-funded service with the purpose to track and help prevent the spread of COVID-19. It is run by the National Institute for Health Protection.[75][76] United Kingdom (England)
2020 May 29 Education "UW launches online training for contact tracing to help fight COVID-19"[77]
2020 May 28 Mobile app launch Latvia launches Apturi Covid, becoming the first country to launch a contact tracing app using the newly-available exposure notification APIs by Apple and Google. The voluntary, decentralized, and fully GDPR-compliant app uses Bluetooth technology to identify other nearby devices that also have the app installed. The app notifies users if they have been in the proximity of 2 meters to an individual for more than 15 minutes who has tested positive for COVID-19. [78] Apturi Covid[79] Latvia
2020 May Digital privacy British company Serco accidentally shares the personal email addresses of nearly 300 trainee COVID-19 contact tracers. The company hires, trains and operates about 15,000 contact tracers who do not have clinical training.[80] United Kingdom
2020 June 1 Mobile app launch Immuni is launched in Italy as the official COVID-19 contact-tracing app, built on the framework developed by Apple and Google to track infections.[81][82][83] Italy
2020 June 5 Mobile app launch The Moroccan Ministry of Health announces launch of 'WIQAYTNA' an app for COVID-19 contact tracing based on bluetooth technology, and aimed to notify users in case they come into prolonged contact with an individual who has tested positive.[84] Morocco
2020 June 4 Database launch The Argentine Government creates a COVID-19 database with the purpose to process the data generated through the official contact tracing app, facilitating greater state control of the pandemic.[85] Argentina
2020 June 4 Publication The World Health Organization publishes its Digital tools for COVID-19 contact tracing.[86]
2020 June 4 Mobile app launch COVID-19 contact tracing app Corona Tracer BD is launched in Bangladesh.[87] Bangladesh
2020 June 5 Mobile app launch The Nigerian National Petroleum Corporation reveals having developed a Covid-19 contact-tracing application to be deployed in all its locations across the Nigeria.[88] Nigeria
2020 June 8 Mobile app launch COVID-19 app DiagnoseMe is launched by engineers from Burkina Faso.[89] Burkina Faso
2020 June 9 Mobile app launch Poland releases a new version of the Covid-19 contact tracing app ProteGO Safe, now adapted to address concerns about privacy. Previously, the official contact-tracing app released by the government spurred debate on privacy and surveillance during the pandemic, with critics seeing ample opportunity for abuse.[90][91][92] Poland
2020 June 10 Digital privacy A French ethical hacker claims Pakistan's covid-19 contact tracing app COVID-19 Gov PK reveals patients' locations, and emphasizes that the software is not a contact tracing app, adding that it "gives access to dashboards for each province and state, you can do a self-assessment, get radius alert, get a popup notification reminding the user of their personal hygiene". The government denies claims.[93][94] Pakistan
2020 June 14 Mobile app launch The Saudi Authority for Data and Artificial Intelligence (SDAIA) launches Tabaud, a contact-tracing app aimed to track COVID-19. Saudi Arabia becomes one of the latest countries to use the Apple-Google Exposure Notification System. Users can share their information and then contact those having come into contact with. If a user tests positive, a notification would be sent to users who came into close contact with the infected user during the last 14 days.[95][96] Saudi Arabia
2020 June 15 Digital privacy The Norwegian government decides to stop using its COVID-19 contact tracing app after controversial case concerning privacy, and hours before Amnesty International releases an analysis criticizing the app.[97] Norway
2020 June 15 Mobile app launch The Uruguyan Government launches CoronavirusUY, which uses Exposure Notification system.[98][99][100] Uruguay
2020 June 16 Mobile app launch The Robert Koch Institute in Germany launched the Corona-Warn-App, which is designed to speedily track down new clusters of coronavirus infection as the country's lockdown is relaxed.[101][102][34] Germany
2020 June 16 Digital privacy An investigation by Amnesty International reveals that Bahrain’s ‘BeAware Bahrain’, Kuwait’s ‘Shlonik’ and Norway’s ‘Smittestopp’ apps stand out among the most dangerous contact tracing apps regarding privacy, "with all three actively carrying out live or near-live tracking of users’ locations by frequently uploading GPS coordinates to a central server".[103] Bahrain, Kuwait, Norway
2020 June 17 Mobile app launch Germany launches Corona-Warn-App, a COVID-19 tracing system designed to warn users who might have been in contact with an infected person.[104] Germany
2020 June 18 Mobile app launch Toronto and New York City–based Micron Digital Corp develops BIOS (Biokinetic Interactivity Observation System), a mobile phone application aimed at tracing contacts with potential positive cases anonymously.[105] United States,Canada
2020 June 18 Mobile app launch The Danish government launches COVID-19 infection tracing app Smittestop, which notifies citizens who have been in close proximity to a person infected with COVID 19.[106] Smittestop[107] Denmark
2020 June 18 Manual contact tracing A survey shows that the national coronavirus contact tracing workforce in the United States reaches 37,110 workers, tripling 11,142 workers counted six weeks before.[108] United States
2020 June 19 Mobile app launch Japan launches the COVID-19 Contact-Confirming Application (COCOA), which allows users to know whether or not they had contact with infected persons. It is developed by Microsoft.[109][110][111] Japan
2020 June 25 Mobile app launch Switzerland launches COVID-19 contact tracing app SwissCovid, which uses exposure notification.[112][113] Switzerland
2020 June 29 Mobile app launch Spain launches first phase of Radar COVID, which uses Exposure Notification system.[114][114][115] Spain
2020 July 7 Mobile app launch The Irish Government releases digital contact tracing app COVID Tracker Ireland, which uses exposure notification by Google and Apple Inc.[116] Ireland
2020 July 13 Mobile app launch Kenya's Ministry of Health announces launch of web-based app to trace COVID-19 cases in the country.[117] Kenya
2020 July 21 Digital privacy Major security flaws are found in a South Korean quarantine app, exposing private details of people in quarantine. The flaws are also found to allow hackers to tamper with data to make it look as if users of the app were either violating quarantine orders or still in quarantine despite being somewhere else. After acknowledgement by South Korean officials, the defects are eventually fixed.[118] South Korea
2020 July 21 Education "Ultimate Medical Academy (UMA) has launched a new online, non-credit Contact Tracing course, helping to fill the nation’s growing need to track and combat COVID-19 exposure. The complimentary, six-module interactive course can be completed in only a few hours. In the course, participants will discuss topics like epidemiology, public health and the day-to-day tasks of contact tracers"[119]
2020 July 21 Performance An article by Christie Aschwanden on scientificamerican.com reorts on contact tracing i the United States being severely underused, and states that, despite tracing’s success in other countries, the U.S. government has failed to adequately fund or apply the tool.[120] United States
2020 July 23 Education "Bakersfield College announces the launch of a week-long Infectious Disease Contact Tracing Course running from July 27, 2020 to July 31, 2020. As the need for more contact tracers ramps up, Bakersfield College is responding by introducing a one-week course that will allow individuals to gain the employability skills needed to provide contract tracing for employers and the community. This course is targeted for current employers who might need their employees to act as contact tacers for the organization, individuals who are currently in the health sciences, as well as those who have been laid off during this COVID-19 induced recession and want to gain the skills to re-enter the workforce."[121] United States
2020 July 27 Mobile app launch Croatia launches contact tracing app STOP COVID-19’, a voluntary, cyber-secured application, using only temporary and anonymous data. It does not use geolocation tracking, and there is no collection of user’s data, with the app success expected to be based on "conscientious and solidary participation of citizens”.[122] Croatia
2020 July 27 Education "Bakersfield College has announced a one-week course beginning July 27 that will allow individuals to gain employability skills needed to provide contact tracing for employers and the community."[123]
2020 July 30 Mobile app launch StopCOVID NI launches in Northern Ireland, which becomes the first region in the united Kingdom to launch a COVID-19 tracker app.[124][125] Northern Ireland
2020 July 31 Mobile app launch COVID-19 tracking app COVID Alert is launched in Canada by the federal government. Code from Shopify was used and app security was built with assistance of Blackberry Inc. The technology is developed with Apple Inc and Google.[126][127][128][129] Canada
2020 July 31 Mobile app launch The Government of Brazil announces Coronavírus-SUS.[130] Brazil
2020 End of July Education More than half a million people are enrolled for a free online Covid-19 contact-tracing course offered by Johns Hopkins University.[131] United States
2020 August 5 Protocol integration Brazil integrates Apple-Google exposure notification tech into its federal government-backed Covid-19 smartphone app.[132] Brazil
2020 August 12 Userbase As of date, about 15.7 million smartphone users have downloaded Vietnamese locally-developed contact-tracing app Bluezone, designed to identify and alert people who have interacted with COVID-19 patients.[133] Vietnam
2020 August 13 Mobile app launch The government of Ecuador launches app that notifies users contact with a COVID-19 case.[134] Ecuador
2020 August 18 Mobile app launch The Slovenian Public Administration Minister launches contact tracing app OstaniZdrav (StayWell),for Android users.[135] Slovenia
2020 August 20 Mobile app launch Estonia launches free COVID-19 exposure notification app Hoia, which is optional and not mandatory, and has the purpose to inform close contacts of those infected with the coronavirus and to provide them with initial instructions on how to proceed.[136][137] Estonia
2020 August 27 Userbase "More than 300,000 users have downloaded Northern Ireland's contact-tracing app"[138] United Kingdom (Northern Ireland)
2020 August 31 Mobile app launch Finland launches smartphone app Koronavilkku, as part of the Government's test, trace, isolate and treat strategy.[139][140][141] In one day, Downloads of this app quickly reach 1 million, corresponding to nearly one fifth of Finland's population of 5.52 million.[142][143] Finland
2020 September 1 Mobile app launch South Africa launches COVID Alert SA, the government’s official Bluetooth contact-tracing app. It’s built on the Apple–Google Exposure Notifications application programmable interface (API).[144][145] South Africa
2020 September 1 Mobile app launch StayAway Covid is launched in Portugal, for iOS and Android.[146] Portugal
2020 September 3 Mobile app launch The Government of Philippines launches StaySafe.ph, a contact tracing application aimed to trace Covid-19 close contacts and warn the public on “nearby danger”.[147] Philippines
2020 September 3 Mobile app launch COVID Alert is launched in South Africa. The app uses Exposure Notification system created by Apple and Google, and Bluetooth technology to notify users if they have been in contact with COVID-19.[148] South Africa
2020 September 9 Mobile app launch Saw Saw Shar is developed by the Myanmar Computer Federation as the official contact-tracing app of Myanmar. The app provides symptom monitoring as well as timely notifications on nearby potential high-risk areas with positive cases.[149] Myanmar
2020 September 10 Mobile app launch Protect Scotland launches in Scotland as a COVID-19 contact-tracing application. The Scottish government says that the software supports the Test and Protect system and is "another tool in the fight against Covid-19".[150][151] United Kingdom (Scotland)
2020 September 10 Mobile app launch Guam Covid Alert is launched in Guam, which becomes the first U.S. Territory to launch an exposure notification app developed by engineers with Apple, Google, and the PathCheck Foundation that uses Bluetooth technology for digital contact tracing.[152][153] Guam
2020 September 17 Mobile app launch eRouška (eMask) is launched in the Czech republic as a contact tracing app using Exposure Notification protocol.[154][155] Czech Republic
2020 September 24 Mobile app launch NHS COVID-19 app launches in England and Wales. It uses exposure Notification.[156] United Kingdom (England, Wales)
2020 September 30 Mobile app launch Belgium rolls out contact tracing app Coronalert, available to download from the Belgium App Store and working in all three regions and different languages in the country.[157][158] Belgium
2020 September 30 Mobile app launch COVID Alert NY is launched in New York State. The app notifies users of potential COVID-19 exposure while maintaining user privacy and security. It is based on COVID Tracker Ireland.[159][160] United States (New York)
2020 October 6 Education "University of California San Francisco and Salesforce Launch Free Contact Tracing Course on Trailhead"[161] United States
2020 October 8 Mobile app launch Kazakhstan launches the Saqbol mobile app, a COVID-19 contact tracing app designed to control the spread of the infection and timely locate the virus’s hotspots. Infected users can anonymously inform others on their contacts in the last 14 days for 15 minutes and in a distance of 2 meters. According to the developers, the records of interaction between devices are encoded.[162] Kazakhstan
2020 October 10 Mobile app launch Dutch COVID-19 notification app ‘CoronaMelder’ is launched. It is designed according to the privacy by design requirements.[163] Netherlands
2020 October 19 Userbase "Ireland is one of the first countries to link contact tracing apps with other EU Member States" as pof date "The app has had 2.1 million registrations since its launch, and has an active user base of 1.31 million. This represents 34 per cent of the adult population (aged 16+) in Ireland."[164] Ireland
2020 October 26 Mobile app launch The French government launches TousAntiCovid, which uses a centralized system that sends the data from a phone to government systems to do the contact matching.[165] France
2020 November 9 Mobile app launch MI COVID Alert launches in Michigan. The app is designed to notify users if they have potentially been in close contact with infected people.[166] United States (Michigan)
2020 November 25 Mobile app launch The Russian government launches Gosuslugi, a smartphone app that alerts users of possible exposure to COVID-19. The app scans the user’s surroundings in a 10-meter radius and measures how close and for how long they interact with other users. Infected users are expected to voluntarily notify the app, which then sends alerts to all others who were in close proximity to them.[167][168] Russia
2020 November Performance It is reported that in England, tracers fail to get in touch with one in eight people who test positive for COVID-19, and 18% of those who are reached provide no details for close contacts.[2] United Kingdom (England)
2020 November Performance It is reported that in some regions of the United States, more than half of people who test positive provide no details of contacts when asked.[2] United States
2020 December 3 Partnership Delta Airlines partners with the Centers for Disease Control and Prevention for international traveler contact tracing, and aimed at keeping international customers informed of potential COVID-19 exposure.[169][170] United States
2020 December 7 Mobile app launch CA Notify is launches in California, allowing users who test positive to anonymously inform those with whom they have been in close proximity that they may have been exposed. The app is designed to optimize privacy, it doesn’t use location data or identify the people users come into contact with.[171][172][173][174] California
2020 December 21 Mobile app launch Smittestopp launches in Norway, replacing a version of the app that was suspended earlier in the year due to scrutiny from the local Norwegian Data Protection Authority.[175][176] Within two days, the new infection control app would be downloaded 158,700 times, with already 41 people reporting that they are infected.[177] Norway
2020 December 23 Public opinion An article on privacy and surveillance in the COVID-19 Pandemic reports that U.S. citizens continue to be deeply skeptical of contact tracing technology and hesitant to adopt other preventive measures.[178] United States
2021 January 21 Performance "New research by Hertie School Assistant Professor of Data Science and Public Policy Simon Munzert shows that Germany's contact tracing “Corona Warn-App” is underused by those who have heightened risk of exposure to COVID-19."[179] Germany
2021 January 28 Digital privacy The Public Health Emergency Privacy Act is introduced in the United States as a legislation meant to tackle the privacy and security issues tied to technologies used for the COVID-19 response, including contact tracing apps.[180] United States

Meta information on the timeline

How the timeline was built

The initial version of the timeline was written by User:Sebastian.

Funding information for this timeline is available.

Feedback and comments

Feedback for the timeline can be provided at the following places:

  • FIXME

What the timeline is still missing

Timeline update strategy

See also

External links

References

  1. "COVID-19 Contact Tracing Device Balances Workplace Safety with Privacy". Manufacturing.net. 23 March 2021. Retrieved 24 March 2021. 
  2. 2.0 2.1 2.2 Lewis, Dyani (14 December 2020). "Why many countries failed at COVID contact-tracing — but some got it right". Nature. pp. 384–387. doi:10.1038/d41586-020-03518-4. Retrieved 24 March 2021. 
  3. "Contact tracing". Google Trends. Retrieved 19 March 2021. 
  4. "Contact tracing". books.google.com. Retrieved 19 March 2021. 
  5. "Contact tracing". wikipediaviews.org. Retrieved 19 January 2021. 
  6. "China: Pneumonia cluster reported in Wuhan, Hubei Province, Agent still unknown". Outbreak News Today. 31 December 2019. Retrieved 23 March 2021. 
  7. "China coronavirus: Lockdown measures rise across Hubei province". BBC News. 23 January 2020. Retrieved 24 March 2021. 
  8. Team, Content. "THE PANDEMIC – What Canada Should Have Done and Should Be Doing | SaultOnline.com". saultonline.com. Retrieved 4 April 2021. 
  9. Jha, Prof Pankaj (18 March 2021). "Vietnam's efforts against COVID-19: An Assessment". Modern Diplomacy. Retrieved 4 April 2021. 
  10. "Doing it better: The lesson from Vietnam – The Manila Times". www.manilatimes.net. Retrieved 4 April 2021. 
  11. Dabla-Norris, Era; Asia, Yuanyan Sophia Zhang IMF; Department, Pacific. "Vietnam: Successfully Navigating the Pandemic". IMF. 
  12. "WHO declares Public Health Emergency on novel coronavirus - PAHO/WHO | Pan American Health Organization". www.paho.org. Retrieved 24 March 2021. 
  13. "COVID-19 Public Health Emergency of International Concern (PHEIC) Global research and innovation forum". www.who.int. Retrieved 24 March 2021. 
  14. "Lithuania launches Coronavirus App". the Lithuania Tribune. 3 February 2020. Retrieved 3 February 2021. 
  15. "China launches coronavirus 'close contact detector' app". BBC News. 11 February 2020. Retrieved 19 January 2021. 
  16. "Because Hamiltonians Track COVID-19: John Werner '92". 
  17. "How an MIT spin-off is using contact tracing to fight COVID-19, and so can you". 
  18. "MIT announces Bluetooth breakthrough in coronavirus tracing app for android and ios". 
  19. "PATHCHECK FOUNDATION". okosvaros.lechnerkozpont.hu. Retrieved 8 March 2021. 
  20. "PathCheck". pathcheck.org. Retrieved 16 January 2021. 
  21. Cimpanu, Catalin. "Spying concerns raised over Iran's official COVID-19 detection app". ZDNet. Retrieved 20 January 2021. 
  22. "Iran: Google withdraws Iranian government COVID-19 self-diagnosis app". Privacy International. Retrieved 20 January 2021. 
  23. "Colombian president launches app to track COVID-19". aa.com. Retrieved 20 January 2021. 
  24. 24.0 24.1 "Digital contact-tracing during the Covid-19 pandemic: an analysis of newspaper coverage in Germany, Austria, and Switzerland" (PDF). medrxiv.org. Retrieved 6 December 2020. 
  25. Tapper, James (6 December 2020). "Recruit volunteer army to trace Covid-19 contacts now, urge top scientists". The Guardian. ISSN 0261-3077. Retrieved 18 April 2020. 
  26. Heren, Kit (31 May 2020). "Contact tracers could deal with five people a week before scheme ended". www.standard.co.uk. Retrieved 2 March 2021. 
  27. Chakraborty, Pranab; Maitra, Subhamoy; Nandi, Mridul; Talnikar, Suprita. Contact Tracing in Post-Covid World: A Cryptologic Approach. Springer Nature. ISBN 978-981-15-9727-5. 
  28. "Singapore launches contact tracing mobile app to track coronavirus infections". arabnews.com. Retrieved 6 December 2020. 
  29. "Singapore launches TraceTogether mobile app to boost COVID-19 contact tracing efforts". channelnewsasia.com. Retrieved 17 January 2021. 
  30. Lee, Yimou (20 March 2020). "Taiwan's new 'electronic fence' for quarantines leads wave of virus monitoring". Reuters. Retrieved 1 February 2021. 
  31. "Sri Lanka: MDIIT launches mobile app to track Coronavirus". DataGuidance. 15 April 2020. Retrieved 1 February 2021. 
  32. "Singapore government to open source contact-tracing protocol". ComputerWeekly.com. Retrieved 8 March 2021. 
  33. Fritz, Freshfields Bruckhaus Deringer LLP-Gernot; Klimpfinger, Boris. "Contact tracing apps in Austria: a Red Cross initiative | Lexology". www.lexology.com. Retrieved 3 February 2021. 
  34. 34.0 34.1 Amann, Julia; Sleigh, Joanna; Vayena, Effy (3 February 2021). "Digital contact-tracing during the Covid-19 pandemic: An analysis of newspaper coverage in Germany, Austria, and Switzerland". PLOS ONE. 16 (2): e0246524. doi:10.1371/journal.pone.0246524. 
  35. "Europe's PEPP-PT COVID-19 contacts tracing standard push could be squaring up for a fight with Apple and Google". TechCrunch. Retrieved 8 March 2021. 
  36. "European experts ready smartphone technology to help stop coronavirus". reuters.com. Retrieved 6 December 2020. 
  37. Staff, Reuters (1 April 2020). "Europe to launch coronavirus contact tracing app initiative". Reuters. Retrieved 8 March 2021. 
  38. "Europe's PEPP-PT COVID-19 contacts tracing standard push could be squaring up for a fight with Apple and Google". TechCrunch. Retrieved 8 March 2021. 
  39. "Government of India launches ArogyaSetu App to track Covid 19 infection" (PDF). aarogyasetu.gov.in. Retrieved 6 December 2020. 
  40. "Peru: Presidency announces launch of Coronavirus app". DataGuidance. 9 April 2020. Retrieved 24 January 2021. 
  41. "Rift Opens Over European Coronavirus Contact Tracing Apps". The New York Times. Reuters. 2020-04-20. ISSN 0362-4331. Retrieved 8 March 2021. 
  42. "Initial commit". github.com. Retrieved 6 December 2020. 
  43. "Egypt launches mobile application to track coronavirus cases - Politics - Egypt". Ahram Online. Retrieved 20 January 2021. 
  44. "AfricaPLC.com |". AfricaPLC.com. 8 April 2020. Retrieved 2 March 2021. 
  45. "Afghan Ministries Launch Coronavirus Tracking App". TOLOnews. Retrieved 24 January 2021. 
  46. "Afghanistan launches health information and self-evaluation app". Privacy International. Retrieved 2 March 2021. 
  47. "Afghan Ministries Launch Coronavirus Tracking App - Announcements - Afghanistan Coronavirus (COVID-19) - APAN Community". community.apan.org. Retrieved 2 March 2021. 
  48. "Exposure Notification" (PDF). blog.google. Retrieved 15 March 2021. 
  49. Bostock, Bill. "South Korea launched wristbands for those breaking quarantine because people were leaving their phones at home to trick government tracking apps". Business Insider. Retrieved 4 April 2021. 
  50. "Turkey to use contact-tracing app to detect coronavirus". aa.com. Retrieved 20 January 2021. 
  51. "Nodle Launches Coalition, a Free, Privacy-First Contact Tracing App to Help Stop The Spread of COVID-19". apnews.com. Retrieved 6 December 2020. 
  52. "DocSend - Simple, intelligent, modern content sending". DocSend. 
  53. "Whisper Tracing Protocol". en.google-info.cn. Retrieved 15 March 2021. 
  54. "MCMC launches contact tracing app: Gerak Malaysia (update: not approved by Mosti) | The Star". www.thestar.com.my. Retrieved 24 January 2021. 
  55. "Govt raises prospect of new laws for COVID contact tracing app". iTnews. Retrieved 3 February 2021. 
  56. "COVID-19: Poland Launches an Official Tracking App". The National Law Review. Retrieved 3 February 2021. 
  57. "Australia launches contact tracing app". The Straits Times. 27 April 2020. Retrieved 22 January 2021. 
  58. Kelly, Lidia (26 April 2020). "Australia launches controversial COVID-19 tracking app as some states start easing rules". Reuters. Retrieved 1 February 2021. 
  59. "Cabinet of Ministers of Ukraine - 'Act at Home' app is launched to counteract the spread of COVID-19 in Ukraine". www.kmu.gov.ua. Retrieved 20 January 2021. 
  60. Sandford, Alasdair (2 April 2020). "Coronavirus: Half of humanity on lockdown in 90 countries". euronews. Retrieved 24 March 2021. 
  61. "Coronavirus: Zambia sex workers praised for contact tracing". BBC News. 10 May 2020. Retrieved 2 February 2021. 
  62. "Salesforce coronavirus contact tracing platform goes national". SearchCustomerExperience. Retrieved 15 March 2021. 
  63. Staff, Reuters (14 May 2020). "India launches contact-tracing app for JioPhones in virus battle". Reuters. Retrieved 19 January 2021. 
  64. "Thailand to launch COVID-19 tracing application to facilitate disease-control tracking of customers as shops reopen - Xinhua | English.news.cn". www.xinhuanet.com. Retrieved 20 January 2021. 
  65. "Tunisia launches contact-tracing app to combat coronavirus". Middle East Eye. Retrieved 15 March 2021. 
  66. "Covid-19 tracing app launched earlier than expected". RNZ. 19 May 2020. Retrieved 3 February 2021. 
  67. "NZ COVID Tracer app released to support contact tracing". health.govt.nz. Retrieved 6 December 2020. 
  68. "Privacy-Preserving Contact Tracing". Apple. 10 April 2020. 
  69. "COVID-19 exposure notification settings begin to go live for iOS users with new update". techcrunch.com. Retrieved 6 December 2020. 
  70. "Exposure Notification API launches to support public health agencies". Google. 2020-05-20. Retrieved 2020-05-21. 
  71. "ExposureNotification | Apple Developer Documentation". developer.apple.com. Retrieved 2020-05-21. 
  72. "Exposure Notifications: Helping fight COVID-19 - Google". Exposure Notifications: Helping fight COVID-19 - Google. Retrieved 2020-07-31. 
  73. Pinkstone, Joe (20 May 2020). "Apple and Google launch their coronavirus contact-tracing software". Mail Online. Retrieved 2 February 2021. 
  74. "Major security flaw uncovered in Qatar's contact tracing app". www.amnesty.org. Retrieved 22 January 2021. 
  75. "Dido Harding's meteoric rise from telecoms to test and trace, and beyond". www.bbc.co.uk/news. 19 August 2020. Retrieved 9 February 2021. 
  76. "NHS Test and Trace: the journey so far". health.org.uk. Retrieved 6 December 2020. 
  77. "UW launches online training for contact tracing to help fight COVID-19". UW News. Retrieved 11 April 2021. 
  78. "Latvia to launch Google-Apple friendly coronavirus contact tracing app". Reuters. 25 May 2020. Retrieved 3 February 2021. 
  79. "Latvia launches the first publicly available contact tracing app". labsoflatvia.com. Retrieved 6 December 2020. 
  80. Hawkins, Ross (20 May 2020). "Coronavirus: Serco apologises for sharing contact tracers' email addresses". BBC News. 
  81. "IMMUNI APP available for downloading on the APPLE and GOOGLE stores". innovazione.gov.it. Retrieved 6 December 2020. 
  82. Staff, Reuters (1 June 2020). "Italy launches COVID-19 contact-tracing app amid privacy concerns". Reuters. Retrieved 20 January 2021. 
  83. "Italy's 'Immuni' COVID-19 contact tracing app uses Google, Apple tech". Engadget. Retrieved 3 February 2021. 
  84. "Morocco: Ministry of Health announces launch of tracing app". DataGuidance. 5 June 2020. Retrieved 22 January 2021. 
  85. "The Argentine Government Created COVID-19 Database". www.marval.com. Retrieved 20 January 2021. 
  86. "Digital tools for COVID-19 contact tracing". www.who.int. Retrieved 19 March 2021. 
  87. "Bangladesh finally gets its own contact tracing app". The Daily Star. 5 June 2020. Retrieved 20 January 2021. 
  88. "NNPC Develops Covid-19 Contact Tracing App". www.rigzone.com. Retrieved 20 January 2021. 
  89. "Young engineers from Burkina Faso together with a colleague studying in Wuhan launched DiagnoseMe app to detect symptoms of Covid-19". Outriders. 8 June 2020. Retrieved 1 February 2021. 
  90. "Poland Rolls Out Privacy-Secure Coronavirus Tracking App". usnews.com. Retrieved 6 December 2020. 
  91. Staff, Reuters (9 June 2020). "Poland rolls out privacy-secure coronavirus tracking app". Reuters. Retrieved 22 January 2021. 
  92. "Coronavirus contact tracing reignites Polish privacy debate". dw.com. Retrieved 4 February 2021. 
  93. "French hacker claims Pakistan's COVID-19 contact tracing app reveals patients' locations, govt denies claims- Technology News, Firstpost". Tech2. 10 June 2020. Retrieved 20 January 2021. 
  94. "Pakistan's Covid-19 App Becomes Laughing Stock as it Fails at Contact Tracing, Privacy". News18. 9 June 2020. Retrieved 20 January 2021. 
  95. "Saudi Arabia releases contact tracing app". dig.watch. Retrieved 3 February 2021. 
  96. "Saudi Arabia launches new Covid-19 tracing app". arabianbusiness.com. Retrieved 22 January 2021. 
  97. "Norway halts COVID-19 contact tracing app a major win for privacy". www.amnesty.org. Retrieved 22 January 2021. 
  98. "App coronavirus UY: cómo descargarla y recibir alertas por COVID-19". Diario EL PAIS Uruguay (in spanish). Retrieved 8 March 2021. 
  99. "Red Gealc". Red Gealc. Retrieved 8 March 2021. 
  100. "Lanzan app con alerta de exposición al covid-19 en Uruguay". France 24. 15 June 2020. Retrieved 3 February 2021. 
  101. "Germany launches 'best' coronavirus tracing app". dw.com. Retrieved 6 December 2020. 
  102. Welle (www.dw.com), Deutsche. "Germany launches 'best' coronavirus tracing app | DW | 16.06.2020". DW.COM. Retrieved 19 January 2021. 
  103. "Bahrain, Kuwait and Norway contact tracing apps a danger for privacy". www.amnesty.org. Retrieved 22 January 2021. 
  104. "Germany Launches Contact-Tracing, Norway Halts Its System". VOA. Retrieved 22 January 2021. 
  105. "BIOS, anonymous contact tracing app for Covid-19". Dhaka Tribune. 18 June 2020. Retrieved 20 January 2021. 
  106. "Denmark launches coronavirus app Smittestop". The Copenhagen Post (in DK). 18 June 2020. Retrieved 3 February 2021. 
  107. "Danish COVID-19 infection tracing app (Smittestop)". oecd-opsi.org. Retrieved 6 December 2020. 
  108. "As States Reopen, Do They Have The Workforce They Need To Stop Coronavirus Outbreaks?". NPR.org. Retrieved 22 March 2021. 
  109. Byford, Sam (19 June 2020). "Japan rolls out Microsoft-developed COVID-19 contact tracing app". The Verge. Retrieved 3 February 2021. 
  110. "Japan's coronavirus contact-tracing app launched amid privacy concerns". The Japan Times. 19 June 2020. Retrieved 20 January 2021. 
  111. "Effectiveness of the COVID-19 Contact-Confirming Application (COCOA) based on a Multi Agent Simulation". arxiv.org. Retrieved 6 December 2020. 
  112. "SwissCovid app available from 25 June". bag.admin.ch. Retrieved 6 December 2020. 
  113. MacNamee, Sara Ibrahim, Terence. "Switzerland launches SwissCovid tracing app for residents". SWI swissinfo.ch. Retrieved 3 February 2021. 
  114. 114.0 114.1 Vega, Guillermo (29 June 2020). "Spain launches first phase of coronavirus-tracking app". EL PAÍS. Retrieved 20 January 2021. 
  115. "Así es Radar COVID, la aplicación de rastreo de contactos de coronavirus española". hipertextual.com. Retrieved 6 December 2020. 
  116. "Coronavirus: 1 Death From Covid-19 In Ireland Today". midlands103.com. Retrieved 6 December 2020. 
  117. "Kenya launches web-based app to trace COVID-19 cases - Xinhua | English.news.cn". www.xinhuanet.com. Retrieved 20 January 2021. 
  118. Sang-Hun, Choe; Krolik, Aaron; Zhong, Raymond; Singer, Natasha (21 July 2020). "Major Security Flaws Found in South Korea Quarantine App". The New York Times. Retrieved 20 January 2021. 
  119. "Ultimate Medical Academy Launches Contact Tracing Course". www.ultimatemedical.edu. Retrieved 6 April 2021. 
  120. Aschwanden, Christie. "Contact Tracing, a Key Way to Slow COVID-19, Is Badly Underused by the U.S.". Scientific American. Retrieved 13 April 2021. 
  121. "Bakersfield College Launches Contact Tracing Course to Train "Coronavirus Detectives" | Bakersfield College". www.bakersfieldcollege.edu. Retrieved 6 April 2021. 
  122. "Croatia Launches New 'STOP COVID-19' Tracing App". BIRD. Retrieved 3 February 2021. 
  123. Californian, The Bakersfield. "BC launches Contact Tracing Course to train 'coronavirus detectives'". The Bakersfield Californian. Retrieved 8 April 2021. 
  124. "Covid-19: Tracing app is released for NI". bbc.com. Retrieved 6 December 2020. 
  125. "Northern Ireland launches UK's first COVID-19 tracker app". Reuters. 31 July 2020. Retrieved 3 February 2021. 
  126. "Positive test but no code to enter into COVID Alert exposure app? We want to hear from you". ctvnews.ca. Retrieved 6 December 2020. 
  127. "Canada launches COVID-19 tracking app — but only in Ontario". Global News. Retrieved 3 February 2021. 
  128. "Co-designing with the app generation: Findings and collaboration opportunities for research, design, and policy around digital youth". The Conversation. 2014. pp. 1–3. doi:10.1002/meet.2014.14505101006. Retrieved 3 February 2021. 
  129. Johnson, Kelsey (31 July 2020). "Canada launches COVID-19 contact tracing app as restrictions loosen". Reuters. Retrieved 22 January 2021. 
  130. "Capa". Ministério da Saúde (in português). Retrieved 11 March 2021. 
  131. ""A Menace to the Public Health" — Contact Tracing and the Limits of Persuasion". nejm.org. Retrieved 5 December 2020. 
  132. Mari, Angelica. "Brazil integrates Apple-Google exposure notification tech into coronavirus app". ZDNet. Retrieved 20 January 2021. 
  133. "COVID-19 tracing app Bluezone hits 15.7 million users | Society | Vietnam+ (VietnamPlus)". VietnamPlus. 12 August 2020. Retrieved 20 January 2021. 
  134. "Nueva 'app' que notifica el contacto con un caso de covid-19 está lista en Ecuador". El Comercio. Retrieved 3 February 2021. 
  135. "Slovenia Releases Contact Tracing App for Android Users". www.total-slovenia-news.com. Retrieved 3 February 2021. 
  136. "Estonia launches coronavirus exposure notification app 'HOIA'". news.err.ee. Retrieved 6 December 2020. 
  137. ERR, ERR News (20 August 2020). "Estonia launches coronavirus exposure notification app 'HOIA'". ERR. Retrieved 3 February 2021. 
  138. Leprince-Ringuet, Daphne. "More than 300,000 users have downloaded Northern Ireland's contact-tracing app". ZDNet. Retrieved 5 April 2021. 
  139. "Koronavilkku has now been published - download the app to your phone!". thl.fi. Retrieved 16 January 2021. 
  140. "The Finnish Covid-19 app Koronavilkku has now been published – download the app to your phone!". solita.fi. Retrieved 16 January 2021. 
  141. "It's here: Finland's coronavirus tracing app". Yle Uutiset. Retrieved 3 February 2021. 
  142. "Coronavirus app downloads quickly reach 1 million". Yle Uutiset. Retrieved 5 April 2021. 
  143. "It's here: Finland's coronavirus tracing app". Yle Uutiset. Retrieved 5 April 2021. 
  144. "Download the app – Every COVID Alert SA app download means more lives saved in SA". sacoronavirus.co.za. Retrieved 16 January 2021. 
  145. "COVID-19 Alert: South Africa to Move to Level 1 Restrictions from Sept. 21". worldaware.com. Retrieved 16 January 2021. 
  146. "StayAway Covid". sns.gov.pt. Retrieved 6 December 2020. 
  147. "StaySafe.ph seen to boost contact tracing efforts". www.pna.gov.ph. Retrieved 20 January 2021. 
  148. Matengo, Dinah. "South Africa launches free COVID-19 contact tracing app". CGTN Africa. Retrieved 20 January 2021. 
  149. "Myanmar government developed a COVID-19 tracking App - News - EuroCham Myanmar". eurocham-myanmar.org. Retrieved 20 January 2021. 
  150. "Scotland's Covid contact tracing app downloaded more than 600,000 times". bbc.com. Retrieved 16 January 2021. 
  151. "Scotland launches contact-tracing app". iapp.org. Retrieved 22 January 2021. 
  152. "Guam launches COVID Alert mobile app to aid contact tracing efforts". pncguam.com. Retrieved 16 January 2021. 
  153. "Guam Covid Alert". guamcovidalert.guam.gov. Retrieved 16 January 2021. 
  154. "Chráním sebe, chráním tebe!". erouska.cz. Retrieved 16 January 2021. 
  155. "eRouška 2.0: Co to je, jak se používá a proč se nemusíte bát o soukromí". mobilmania.cz. Retrieved 16 January 2021. 
  156. "NHS coronavirus app to launch in England and Wales on 24 September". theguardian.com. Retrieved 17 January 2021. 
  157. "'Coronalert': how Belgium's coronavirus tracing app works". brusselstimes.com. Retrieved 17 January 2021. 
  158. "Belgium the latest to launch contact tracing app based on Apple/Google tech". iMore. 30 September 2020. Retrieved 3 February 2021. 
  159. Gorey, Colm (2 October 2020). "NearForm contact-tracing apps launched in New York and New Jersey". Silicon Republic. Retrieved 11 March 2021. 
  160. "Governor Murphy and Governor Cuomo Launch Exposure Notification Apps to Help Stop the Spread of Covid-19". nj.gov. Retrieved 17 January 2021. 
  161. "UCSF and Salesforce Launch Free Contact Tracing Course on Trailhead". Salesforce News. 6 October 2020. Retrieved 11 April 2021. 
  162. "Kazakhstan launches COVID-19 contact tracing app". www.inform.kz. 8 October 2020. Retrieved 2 February 2021. 
  163. "Dutch coronavirus app rolls out nationally Oct. 10 after months of talks". nltimes.nl. Retrieved 17 January 2021. 
  164. "Ireland is one of the first countries to link contact tracing apps with other EU Member States". www.gov.ie. Retrieved 5 April 2021. 
  165. "France launches new contact tracing app, TousAntiCovid". Healthcare IT News. 26 October 2020. Retrieved 20 January 2021. 
  166. "COVID-19 Alert App notifies users if they have been in close contact with infected people". wwmt.com. Retrieved 17 January 2021. 
  167. "Russian government launches Covid contact-tracing app". ewdn.com. Retrieved 3 February 2021. 
  168. Times, The Moscow (17 November 2020). "Russia Develops Coronavirus Contact-Tracing App". The Moscow Times. Retrieved 20 January 2021. 
  169. "Delta partners with CDC for international traveler contact tracing". usatoday.com. Retrieved 4 December 2020. 
  170. "Delta Partners With CDC To Become First U.S. Airline To Launch Contact Tracing Program". baynews9.com. Retrieved 4 December 2020. 
  171. Gardiner, Dustin (8 December 2020). "California launches app to alert people whose contacts test positive for coronavirus". San Francisco Chronicle. Retrieved 3 February 2021. 
  172. Sandler, Rachel. "California Launches Covid-19 Contact Tracing App From Apple, Google". Forbes. Retrieved 11 March 2021. 
  173. "California launches app to alert people whose contacts test positive". www.msn.com. Retrieved 11 March 2021. 
  174. "California Unveils Mobile App to Notify Users of Possible Coronavirus Exposure". NBC Bay Area. Retrieved 11 March 2021. 
  175. "NIPH starts work on a new solution for digital contact tracing". Norwegian Institute of Public Health. Retrieved 11 March 2021. 
  176. "Uden konkurrence: Netcompany vinder ordren på en ny norsk smittestop-app". Computerworld (in dansk). 21 October 2020. Retrieved 11 March 2021. 
  177. Capar, Robin-Ivan (25 December 2020). "Around 160,000 Norwegians downloaded the new Smittestopp corona app". Norway Today. Retrieved 5 March 2021. 
  178. "Study: Americans skeptical of COVID-19 contact tracing apps". Cornell Chronicle. Retrieved 3 February 2021. 
  179. "How effective is Germany's COVID-19 contact tracing app?". Hertie School. Retrieved 14 April 2021. 
  180. "Proposed Public Health Emergency Bill Targets COVID-19 Tech Privacy". HealthITSecurity. 2 February 2021. Retrieved 3 February 2021.