Timeline: Zika’s origin and global spread

The following timeline charts the origin and spread of the Zika virus from its discovery nearly 70 years ago: 1947: Scientists researching yellow fever in Uganda’s Zika Forest identify the virus in a rhesus monkey 1948: Virus recovered from Aedes africanus mosquito in Zika Forest 1952: First human cases detected in Uganda and Tanzania 1954: Virus found in Nigeria 1960s-80s: Zika detected in mosquitoes and monkeys across equatorial Africa 1969-83: Zika found in equatorial Asia, including India, Indonesia, Malaysia and Pakistan 2007: Zika spreads from Africa and Asia, first large outbreak on Pacific island of Yap 2012: Researchers identify two distinct lineages of the virus, African and Asian 2013-14: Zika outbreaks in French Polynesia, Easter Island, the Cook Islands and New Caledonia.