Zika virus infection historical perspective
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yazan Daaboul, M.D.; Nate Michalak, B.A.; Serge Korjian M.D.; Yamuna Kondapally, M.B.B.S[2]
Overview
Zika virus was first isolated from a Rhesus Monkey in 1947 in Uganda. The virus was first isolated from humans in 1968 in Nigeria. Since then, viral circulation and outbreaks have been documented throughout Asia and Africa. The most recent outbreak occurred in Brazil in April 2015.
Historical Perspective
- In 1947, Zika virus was first isolated from a Rhesus Monkey in the Zika Forest of Uganda.[1]
- In 1948, the virus was recovered from the mosquito Aedes africanus caught in the Zika forest.
- In 1952, the first human cases of Zika were detected in Uganda and the United Republic of Tanzania.
- In 1964, a researcher was accidentally infected with Zika and had mild symptoms. This event confirmed that Zika virus causes human infection.
- In 1968, the first human isolation of the virus occurred in Nigeria.[2]
- Between 1951 through 1981, evidence of human infection was additionally reported in the following countries:[2]
- Africa: Tanzania, Egypt, Central African Republic, Sierra Leone, and Gabon
- Asia: India, Malaysia, the Philippines, Thailand, Vietnam, and Indonesia
- Between 1969-1983, Zika virus is detected in mosquitos found in equatorial Asia, including India, Indonesia, Malaysia, and Pakistan.
- In April 2007, The first outbreak of Zika virus outside of Africa and Asia occurred on the Yap Island in the Federated States of Micronesia. The disease was initially thought to be dengue, but the Chikungunya and Ross River viruses were also suspected.[2]
- In 2008, the first documented case of sexual transmission of Zika virus was reported in Colorado.
- In 2012, researchers identified two distinct lineages of Zika virus.
- African strain
- Asian strain
- In 2013, Zika virus infection was first reported to be associated with Guillian-Barre syndrome in the French Polynesian outbreak.
- In 2014, the first South American outbreak was reported originating in Easter Island, Chile.
Global Attention on Zika
- In April 2015, a larger outbreak of Zika virus occurred in the Brazilian district of Camaçari and neighboring Salvador City. An unknown agent was causing flu-like symptoms, followed by rash and arthralgia, in approximately 500 individuals. RT-PCR techniques by researchers at the Federal University of Bahia confirmed the causative organism to be Zika virus.[3]
- In October 2015, Brazil reported an association between Zika virus infection and microcephaly.
- In the United States (U.S), the first local transmission of ZIKV was reported in December 2015, from Puerto Rico.[4]
- In January 2016, the first diagnosis of intrauterine transmission of the Zika virus was made in Brazil.
- In January 2016, Zika virus disease was added to the list of nationally notifiable conditions in the U.S.
- On February 1st, 2016, the World Health Organization (WHO) declared Zika virus a public health emergency.
- On April 13, 2016, CDC announced that Zika virus is a cause of microcephaly and other severe fetal birth defects.[5]
- In July, 2016, an association between ZIKV and Guillain-Barré syndrome was reported in Brazil.
- In July 2016, the first cases of local transmission of ZIKV occurring in the continental United States were reported from Miami-Dade County in Florida.
References
- ↑ History of Zika http://www.who.int/emergencies/zika-virus/history/en/ (2016) Accessed on September 16, 2016
- ↑ 2.0 2.1 2.2 Hayes EB (2009). "Zika virus outside Africa". Emerg Infect Dis. 15 (9): 1347–50. doi:10.3201/eid1509.090442. PMC 2819875. PMID 19788800.
- ↑ Campos GS, Bandeira AC, Sardi SI (2015). "Zika Virus Outbreak, Bahia, Brazil". Emerg Infect Dis. 21 (10): 1885–6. doi:10.3201/eid2110.150847. PMC 4593454. PMID 26401719.
- ↑ U.S Food and Drug http://www.fda.gov/BiologicsBloodVaccines/GuidanceComplianceRegulatoryInformation/Guidances/Blood/default.htm (August 26, 2016) Accessed on September 15, 2016
- ↑ CDC https://www.cdc.gov/zika/about/whatcdcisdoing.html (September, 2016) Accessed on September 14, 2016