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| 2009 (October) || || Vaccine || The United States {{w|FDA}} approves {{w|Cervarix}}, by {{w|GlaxoSmithKline}}, for the prevention of {{w|cervical cancer}}.<ref name="Vaccine Timeline"/> ||
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| 2009 || General || Research || The journal ''[[w:Pediatrics (journal)|Pediatrics]]'' concludes that the largest risk among unvaccinated children is not the contraction of side effects, but rather the disease that the vaccination aims to protect against.<ref name="vaccine refusal">{{cite web |title = Is Vaccine Refusal Worth The Risk? |website = {{w|NPR}} |date = 2009-05-26 |url = https://www.npr.org/templates/story/story.php?storyId=104523437 |accessdate = 1 June 2020 }}</ref> ||
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| 2012 || || Vaccine || A quadrivalent inactivated influenza vaccine is licensed in the {{w|United States}}.<ref>{{cite web|title=Influenza|url=https://www.historyofvaccines.org/content/articles/influenza|website=historyofvaccines.org|accessdate=26 April 2018}}</ref> ||
