Difference between revisions of "Timeline of Zika virus"
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==Full timeline== | ==Full timeline== | ||
Line 204: | Line 136: | ||
|- | |- | ||
|} | |} | ||
+ | |||
+ | == Numerical and visual data == | ||
+ | |||
+ | === Google Scholar === | ||
+ | |||
+ | The following table summarizes per-year mentions on Google Scholar as of December 13, 2021. | ||
+ | |||
+ | {| class="sortable wikitable" | ||
+ | ! Year | ||
+ | ! "Zika virus" | ||
+ | |- | ||
+ | | 1950 || 241 | ||
+ | |- | ||
+ | | 1955 || 335 | ||
+ | |- | ||
+ | | 1960 || 424 | ||
+ | |- | ||
+ | | 1965 || 473 | ||
+ | |- | ||
+ | | 1970 || 618 | ||
+ | |- | ||
+ | | 1975 || 642 | ||
+ | |- | ||
+ | | 1980 || 582 | ||
+ | |- | ||
+ | | 1985 || 615 | ||
+ | |- | ||
+ | | 1990 || 529 | ||
+ | |- | ||
+ | | 1995 || 2,180 | ||
+ | |- | ||
+ | | 2000 || 2,260 | ||
+ | |- | ||
+ | | 2005 || 3,610 | ||
+ | |- | ||
+ | | 2010 || 4,120 | ||
+ | |- | ||
+ | | 2015 || 4,750 | ||
+ | |- | ||
+ | | 2020 || 19,100 | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | [[File:Zika virus gscho.png|thumb|center|700px]] | ||
+ | |||
+ | === Google Trends === | ||
+ | The comparative chart shows {{w|Google Trends}} data for Zika fever (Disease) and zika virus (Virus), from January 2004 to April 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.<ref>{{cite web |title=Zika fever and zika virus |url=https://trends.google.com/trends/explore?date=all&q=%2Fm%2F02vkznh,%2Fm%2F080m_5j |website=Google Trends |access-date=22 April 2021}}</ref> | ||
+ | |||
+ | [[File:Zika fever and zika virus.png|thumb|center|600px]] | ||
+ | |||
+ | The comparative chart below shows {{w|Google Trends}} data for Zika fever (Disease), Dengue fever (Disease), Yellow fever (Disease), Malaria (Disease) and Chagas disease (Disease), from January 2004 to April 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.<ref>{{cite web |title=Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease |url=https://trends.google.com/trends/explore?date=all&q=%2Fm%2F02vkznh,%2Fm%2F09wsg,%2Fm%2F087z2,%2Fm%2F0542n,%2Fm%2F0208m |website=Google Trends |access-date=22 April 2021}}</ref> | ||
+ | |||
+ | [[File:Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease gt.png|thumb|center|600px]] | ||
+ | |||
+ | === Google Ngram Viewer === | ||
+ | |||
+ | The comparative chart below shows {{w|Google Ngram Viewer}} data for Zika and Zika virus, from 1900 to 2019.<ref>{{cite web |title=Zika and Zika virus |url=https://books.google.com/ngrams/graph?content=zika+virus%2Czika&year_start=1900&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B%2Czika%20virus%3B%2Cc0%3B.t1%3B%2Czika%3B%2Cc0#t1%3B%2Czika%20virus%3B%2Cc0%3B.t1%3B%2Czika%3B%2Cc0 |website=books.google.com |access-date=22 April 2021 |language=en}}</ref> | ||
+ | |||
+ | [[File:Zika and Zika virus ngram.png|thumb|center|700px]] | ||
+ | |||
+ | === Wikipedia Views === | ||
+ | |||
+ | The chart below shows pageviews of the English Wikipedia article {{w|Zika virus}}, from July 2015 to March 2021.<ref>{{cite web |title=Zika virus |url=https://wikipediaviews.org/displayviewsformultiplemonths.php?page=Zika+virus&allmonths=allmonths-api&language=en&drilldown=all |website=wikipediaviews.org |access-date=22 April 2021}}</ref> | ||
+ | |||
+ | [[File:Zika virus wv.png|thumb|center|450px]] | ||
+ | |||
+ | |||
+ | The comparative chart below shows pageviews on desktop of the English Wikipedia articles {{w|Zika fever}}, {{w|Dengue fever}}, {{w|Yellow fever}}, {{w|Malaria}} and {{w|Chagas disease}}, from December 2007 to March 2021.<ref>{{cite web |title=Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease |url=https://wikipediaviews.org/displayviewsformultiplemonths.php?pages[0]=Zika+fever&pages[1]=Dengue+fever&pages[2]=Yellow+fever&pages[3]=Malaria&pages[4]=Chagas+disease&allmonths=allmonths&language=en&drilldown=desktop |website=wikipediaviews.org |access-date=22 April 2021}}</ref> | ||
+ | |||
+ | [[File:Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease wv.png|thumb|center|450px]] | ||
==Meta information on the timeline== | ==Meta information on the timeline== |
Latest revision as of 20:23, 16 April 2024
This is a timeline of Zika virus, attempting to describe important events in the history of the disease.
Contents
Big picture
Time period | Development summary |
---|---|
1900< | Sometime in the early 1900s, probably in Uganda, the ancestral Zika virus emerges. This virus would go undetected for decades.[1] |
1969 – 1983 | The known geographical distribution of Zika expands to equatorial Asia. As in Africa, sporadic human cases occur, with no outbreaks detected. The disease in humans continues to be regarded as rare, with mild symptoms.[2] |
2007 < | Zika virus is recognized as a human pathogen of importance for the first time since 2007, when an outbreak of rash and fever occurs on Yap Island and leads to 49 confirmed—and 59 probable—cases of Zika virus infection in human beings. A larger second outbreak occurs in 2013–14 in French Polynesia, involving 333 confirmed cases and 19 000–32 000 suspected cases. In 2015, Zika spreads to the Caribbean, South America, and Central America, where it causes epidemics. Since 2007, local transmission of Zika would be documented in 52 countries and territories, including the United States.[1] |
Full timeline
Year | Month and date | Event type | Details | Country/region |
---|---|---|---|---|
1947 | The Zika virus is discovered during a routine surveillance for yellow fever in the Zika forest in Uganda by Yellow Fever Research Institute scientists. The virus is isolated in samples taken from a captive, sentinel rhesus macaque. The term “ziika” means “overgrown” in Luganda.[3][2][1] | Uganda | ||
1948 | Vector | Zika virus is recovered from the mosquito Aedes africanus, caught on a tree platform in the Zika forest.[2] | ||
1952 | Zika is identified in humans. The first cases are detected in Uganda and Tanzania, in a study demonstrating the presence of neutralizing antibodies to Zika virus in sera.[2][1] | Uganda, Tanzania | ||
1964 | Infection | A researcher in Uganda is infected with Zika while working on the virus. The infection confirms that Zika virus causes human disease. He reports the illness as "mild".[4] | Uganda | |
2007 | Epidemiology | The first large outbreak of disease caused by Zika infection is reported in Yap, an island in the Federated States of Micronesia.[2] Prior to this, no outbreaks and only 14 cases of human Zika virus disease have been documented anywhere in the world.[4] | Micronesia | |
2008 | Epidemiology | An American scientist conducting field work in Senegal falls ill with Zika infection. On his return home to Colorado he infects his wife in what is the first documented case of sexual transmission of a disease usually transmitted by insects.[4] | Senegal, United States | |
2012 | Virology | Researchers identify two distinct lineages of the Zika virus, African and Asian.[4] | ||
2013 | December | Infection | A Japanese tourist returning to Japan is diagnosed with Zika virus infection after visiting the French Polynesian island of Bora Bora, becoming the first imported case of Zika fever in Japan.[5] | Japan |
2014 | January | Epidemiology | Indigenous cases of Zika virus infection are reported in New Caledonia.[6] The outbreak peaks in April, with the number of confirmed cases reaching 1,400 by 17 September.[7] | New Caledonia |
2014 | March 20 | Transmission | During an outbreak of Zika virus in French Polynesia, two mothers and their newborns are found to be infected within four days of birth. The infants' infections appear to have been acquired by transplacental transmission or during delivery.[4][8] | French Polynesia |
2014 | March 31 | Epidemiology | During the outbreak of Zika virus in French Polynesia 1,505 asymptomatic blood donors are reported to be positive for Zika by polymerase chain reaction. These findings alert authorities that Zika virus can be passed on through blood transfusion.[4] | French Polynesia |
2015 | February – May | Epidemiology | An outbreak of Zika begins on the Solomon Islands, with 302 cases reported by 3 May.[9] | Solomon Islands |
2015 | May 7 | Epidemiology | Brazil's National Reference Laboratory confirms Zika virus circulates in the country. This is the first report of locally acquired Zika disease in the Americas.[4] | Brazil |
2015 | June < | Vaccine | Vaccine development for Zika starts in the second half of the year, with the determination of the genomic sequences of the virus isolates in Brazil and cloning of ZIKV genes in to a variety of vectors.[10] | |
2015 | July 17 | Pathology | Brazil reports neurological disorders associated with a history of infection, primarily from the north-eastern state of Bahia. Among these reports, 49 cases are confirmed as Guillain–Barré syndrome. Of these cases, all but 2 had a prior history of infection with Zika, chikungunya or dengue.[4] | Brazil |
2015 | October 16 | Epidemiology | Colombia confirms its first autochthonous Zika cases.[11] | Colombia |
2015 | October 21 | Epidemiology | The first outbreak of Zika infection in Cape Verde is reported.[4][12] | Cape Verde |
2015 | October 30 | Pathology | An unusual increase in the number of cases of microcephaly among newborns is reported in Brazil.[4] | Brazil |
2015 | November 2 | Epidemiology | Suriname reports its first two autochthonous cases of Zika virus.[13] | Suriname |
2015 | ovember 27 | Epidemiology | Venezuela reports its first seven cases of Zika virus.[14] | Venezuela |
2015 | November | Epidemiology | El Savador reports its first three autochthonous cases of Zika virus.[15] | El Salvador |
2015 | November | Epidemiology | Lab confirmed cases of locally acquired Zika infection are reported in Suriname, El Salvador, Guatamala, Mexico, Paraguay, and Venezuela.[4] | |
2015 | November 11 | Policy | Brazil declares a national public health emergency as cases of suspected microcephaly continue to increase.[4] | Brazil |
2015 | November26 | Epidemiology | The first three cases of Zika infection are reported in Mexico, two autochthonous and one travel related (from Colombia).[16] | Mexico |
2015 | November 28 | Pathology | The Zika virus genome in the blood and tissue samples of a baby with microcephaly and other congenital anomalies is detected in Brazil. The baby died within 5 minutes of birth. Brazil reports 3 deaths among 2 adults and a newborn associated with Zika infection.[4] | Brazil |
2016 | December 31 | Epidemiology | Puerto Rico reports its first case of Zika virus.[3][17] | Puerto Rico |
2016 | January 5 | Transmission | Researchers report the first diagnoses of intrauterine transmission of the Zika virus in 2 pregnant women in Brazil whose fetuses were diagnosed with microcephaly, including severe brain abnormalities. Although tests of blood samples from both women are negative, Zika virus is detected in amniotic fluid.[4] | Brazil |
2016 | January 15 | Policy | Because of the "growing evidence of a link between Zika and microcephaly" the United States Centers for Disease Prevention and Control (CDC) issues a travel warning advising pregnant women to consider postponing travel to Brazil as well as the following countries and territories where Zika fever had been reported: Colombia, El Salvador, French Guiana, Guatemala, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Suriname, Venezuela, and the Commonwealth of Puerto Rico.[18] | |
2016 | January 19 | Epidemiology | A man from Thailand becomes the first imported case of Zika virus in Taiwan.[19] | Taiwan |
2016 | January 31 | Epidemiology | Curaçao reports its first confirmed autochthonous case of Zika.[20] | Curaçao |
2016 | February 1 | Policy | The World Health Organization declares that the recent association of Zika infection with clusters of microcephaly and other neurological disorders constitutes a Public Health Emergency of International Concern,[2] and calls on the global research and product development communities to prioritize the development of vaccines together with improved diagnostics, and innovative vector control strategies for Zika virus research and development.[21] | |
2016 | February 2 | Transmission | A case of sexual transmission of Zika infection is reported in Texas.[4] | United States |
2016 | February 4 | Transmission | Brazilian health officials confirm a case of Zika virus infection transmitted by transfused blood from an infected donor.[4] | Brazil |
2016 | March | Epidemiology | First locally acquired cases of Zika virus are reported from Kosrae Micronesia, Dominica and Cuba.[4] | |
2016 | March 15 | Pathology | The first case of Guillain-Barré syndrome with confirmed Zika virus infection in a 13-year-old girl is reported in Panama.[4] | Panama |
2016 | March 26 | Transmission | Chile reports a case of sexually transmitted Zika virus, first case acquired in continental Chilean territory where Aedes mosquitoes are not present.[4] | Chile |
2016 | April 5 | Epidemiology | The first 2 confirmed cases of locally-acquired Zika virus infection in Viet Nam are reported.[22][4] | Viet Nam |
2016 | April 26 | Epidemiology | The first confirmed cases of local vector-borne transmission of Zika virus disease in Peru are reported.[4] | Peru |
2016 | May 16 | Epidemiology | The first case of Zika infection in Belize is confirmed.[23][24] | Belize |
2016 | July 1 | Epidemiology | The first cases of mosquito-borne Zika virus transmission in Guinea-Bissau are reported.[4] | Guinea Bissau |
2016 | July 22 | Vector | The Fiocruz Institute Pernambuco announces that it detected Zika virus in Culex quinquefasciatus mosquitoes collected in houses in the city of Recife, Brazil.[4] | Brazil |
2016 | July | Vaccine | The World Health Organization publishes a Target Product Profile for Zika vaccines which defines the desired characteristics for optimal vaccines, such as safety, period of protection, shelf life and number of doses required to protect against the virus.[4][25][10] | |
2016 | July | Vaccine | Inovio Pharmaceuticals starts a phase 1 clinical trial of its DNA-based vaccine.[1] | |
2016 | July | Vaccine | United States Army researchers agree to give French multinational Sanofi an exclusive license to complete testing and bring to market their development of a ZPIV vaccine, made from inactivated Zika virus particles.[26] | |
2016 | August 2 | Prevention | The World Health Organization releases educational videos on Zika risk communication and community engagement. The videos are an educational resource for local, national and international personnel responding to Zika.[4] | |
2016 | August 25 | Vaccine | At least 30 entities, including 8 public sector institutions, are involved in the development of a Zika vaccine.[4] | |
2016 | August 27 | Epidemiology | The first case of locally transmitted Zika infections in Singapore is confirmed.[27][28] | Singapore |
2016 | August | Vaccine | The DNA-based Zika vaccine candidate enters a Phase 1 clinical trial at the United States National Institute of Allergy and Infectious Diseases.[29] | United States |
2016 | September 7 | Pathology | The World Health Organization concludes that Zika virus infection during pregnancy is a cause of congenital brain abnormalities, including microcephaly, and that Zika virus infection is a trigger of Guillain-Barré syndrome.[4] | |
2016 | October 25 | Program launch | The World Health Organization launches the Zika Virus Research Agenda, which identifies critical areas of research where the Organization is uniquely placed to implement or coordinate global activities.[4] | |
2017 | January | Vaccine | The United States National Institute of Allergy and Infectious Diseases and the World Health Organization cohost a Scientific Consultation on Zika Virus Vaccine Development that provides a state-of-science review on Zika epidemiology and vaccine development.[25] | |
2017 | February 1 | Vaccine | The World Health Organization updates information on vaccine research and development. More than 40 Zika vaccine candidates are in the pipeline and 5 are reported to enter Phase I trials, where the vaccine's safety and ability to produce an immune response would be evaluated.[4] | |
2017 | March 10 | Epidemiology | As of date, people in 84 countries and territories had been infected with Zika virus.[1] | |
2017 | early | Vaccine | The World Health Organization publishes an updated Target Product Profile (TPP) for a Zika vaccine to be used in an outbreak response scenario.[10] | |
2017 | March | Vaccine | The United States National Institute of Allergy and Infectious Diseases launches a Phase 2 clinical trial of its DNA-based Zika vaccine candidate, which aims to enroll at least 2,490 healthy adult and adolescent participants in areas of confirmed or potential active mosquito-transmitted Zika infection. Sites are located in Houston, Puerto Rico, Brazil, Peru, Costa Rica, Panama and Mexico.[29][30] | United States |
2017 | June | Vaccine | The World Health Organization convenes a group of about 30 experts in epidemiology, regulatory, preclinical and clinical vaccine trials, and mathematical modelling, in a workshop on planning for Zika vaccine efficacy trials.[25] | |
2017 | October 4 | Vaccine | Article published online in the New England Journal of Medicine reports preliminary data from the first trial of a Zika virus (ZIKV) vaccine in human subjects, ZIKA-001, showing that three doses of the synthetic GLS-5700 DNA vaccine led to binding antibody production in all subjects and neutralizing antibodies in more than half of samples tested.[31] |
Numerical and visual data
Google Scholar
The following table summarizes per-year mentions on Google Scholar as of December 13, 2021.
Year | "Zika virus" |
---|---|
1950 | 241 |
1955 | 335 |
1960 | 424 |
1965 | 473 |
1970 | 618 |
1975 | 642 |
1980 | 582 |
1985 | 615 |
1990 | 529 |
1995 | 2,180 |
2000 | 2,260 |
2005 | 3,610 |
2010 | 4,120 |
2015 | 4,750 |
2020 | 19,100 |
Google Trends
The comparative chart shows Google Trends data for Zika fever (Disease) and zika virus (Virus), from January 2004 to April 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.[32]
The comparative chart below shows Google Trends data for Zika fever (Disease), Dengue fever (Disease), Yellow fever (Disease), Malaria (Disease) and Chagas disease (Disease), from January 2004 to April 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.[33]
Google Ngram Viewer
The comparative chart below shows Google Ngram Viewer data for Zika and Zika virus, from 1900 to 2019.[34]
Wikipedia Views
The chart below shows pageviews of the English Wikipedia article Zika virus, from July 2015 to March 2021.[35]
The comparative chart below shows pageviews on desktop of the English Wikipedia articles Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease, from December 2007 to March 2021.[36]
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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Poland, Gregory A; Kennedy, Richard B; Ovsyannikova, Inna G; Palacios, Ricardo; Ho, Paulo Lee; Kalil, Jorge. "Development of vaccines against Zika virus". The Lancet.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "The history of Zika virus". who.int. Retrieved 11 June 2018.
- ↑ 3.0 3.1 "A Brief History Of Zika Virus, From Its Discovery In The Zika Forest To The Global Outbreak Today". medicaldaily.com. Retrieved 11 June 2018.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 4.28 "The History of Zika Virus". who.int. Retrieved 11 June 2018.
- ↑ {{cite web | first1=Dr. Satoshi | last1=Kutsuna | url=http://www.promedmail.org/post/20131219.2126046 | title=Zika Virus - Japan: ex French Polynesia | publisher=International Society for Infectious Diseases | date=18 December 2013 | accessdate=16 June 2018 | website=ProMED-mail
- ↑ "Zika Virus - Pacific (03): New Caledonia". ProMED-mail. International Society for Infectious Diseases. 22 January 2014. Retrieved 16 June 2016.
- ↑ Roth, A; Mercier, A; Lepers, C; et al. (2014). "Concurrent outbreaks of dengue, chikungunya and Zika virus infections – an unprecedented epidemic wave of mosquito-borne viruses in the Pacific 2012–2014". Eurosurveillance. 19 (41): 20929. ISSN 1560-7917. PMID 25345518. doi:10.2807/1560-7917.ES2014.19.41.20929.
- ↑ Besnard, M; Lastère, S; Teissier, A; Cao-Lormeau, V M; Musso, D. "Evidence of perinatal transmission of Zika virus, French Polynesia, December 2013 and February 2014".
- ↑ "Zika virus infection outbreak, Brazil and the Pacific region" (PDF). Rapid Risk Assessment. Stockholm: European Centre for Disease Prevention and Control. 25 May 2015. pp. 4–5. Retrieved 16 June 2018.
- ↑ 10.0 10.1 10.2 Barrett, Alan D. T. "Current status of Zika vaccine development: Zika vaccines advance into clinical evaluation".
- ↑ Kindhauser, Mary Kay; Allen, Tomas; Frank, Veronika; Santhana, Ravi; Dye, Christopher. "Zika: the origin and spread of a mosquito-borne virus". Bulletin of the World Health Organization. Retrieved 17 June 2018.
- ↑ "Zika virus infection – Cape Verde". who.int. Retrieved 6 July 2018.
- ↑ "Zika virus infection – Suriname". Disease Outbreak News. WHO. 11 November 2015. Retrieved 17 June 2018.
- ↑ "Zika virus infection – Venezuela". Disease Outbreak News. WHO. 3 December 2015. Retrieved 17 June 2018.
- ↑ "Zika virus infection – El Salvador". Disease Outbreak News. WHO. March 2016. Retrieved 17 June 2018.
- ↑ "Zika virus infection – Mexico". Disease Outbreak News. WHO. March 2016. Retrieved 17 June 2018.
- ↑ "First case of Zika virus reported in Puerto Rico". Centers for Disease Control and Prevention. 17 June 2016. Retrieved 18 June 2018.
- ↑ Lowes, Robert (January 15, 2016). "CDC Issues Zika Travel Alert". Medscape Medical News.
- ↑ Silver, Marc (5 February 2016). "Mapping Zika: From A Monkey In Uganda To A Growing Global Concern". NPR. Retrieved 17 June 2018.
- ↑ "Zika Country List Expands; Curaçao Reports, Colombia Sees GBS Spike". Curaçao Chronicle. Core Communications. 17 June 2018. Retrieved 1 March 2016.
- ↑ "Zika virus vaccine product development". who.int. Retrieved 12 June 2018.
- ↑ "Zika virus infection – Viet Nam". who.int. Retrieved 11 June 2018.
- ↑ "Belize Confirms First Case of Zika - The San Pedro Sun News". The San Pedro Sun. 17 June 2018. Retrieved 17 May 2016.
- ↑ "1ST ZIKA CASE IS NORTH SIDE BELIZE CITY WOMAN". amandala.com.bz. Retrieved 6 July 2018.
- ↑ 25.0 25.1 25.2 "Immunization, Vaccines and Biologicals". who.int. Retrieved 12 June 2018.
- ↑ "Trial results of Zika vaccine Sanofi dropped show promise". reuters.com. Retrieved 6 July 2018.
- ↑ Lee, Nicole; Branddick, Imogen (29 August 2016). "Singapore steps up Zika prevention effort as confirmed cases rise to 56". Reuters. Singapore. Retrieved 29 August 2016.
- ↑ "Tracking Singapore's Zika outbreak". Retrieved 17 June 2018.
- ↑ 29.0 29.1 "Zika Virus Vaccines". niaid.nih.gov. Retrieved 16 June 2018.
- ↑ "Phase 2 Zika Vaccine Trial Begins in U.S., Central and South America". niaid.nih.gov. Retrieved 16 June 2018.
- ↑ "Zika Vaccine Looks Safe, Promising in First Human Trial". medscape.com. Retrieved 6 July 2018.
- ↑ "Zika fever and zika virus". Google Trends. Retrieved 22 April 2021.
- ↑ "Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease". Google Trends. Retrieved 22 April 2021.
- ↑ "Zika and Zika virus". books.google.com. Retrieved 22 April 2021.
- ↑ "Zika virus". wikipediaviews.org. Retrieved 22 April 2021.
- ↑ "Zika fever, Dengue fever, Yellow fever, Malaria and Chagas disease". wikipediaviews.org. Retrieved 22 April 2021.