Investigations spanning the archipelagoes of French Polynesia in late 2013 documented the largest outbreak of Zika virus, public health researchers have reported.
Isolated in 1947 from a rhesus monkey in the Zika Forest of Uganda, the mosquito-borne flavivirus causes a mild, self-limiting illness. Health experts had thought Zika virus caused only sporadic human infections in Africa and Asia, but in 2007, the first infections outside of those 2 continents were reported in patients on Yap Island, Federated States of Micronesia, who were diagnosed incorrectly with dengue virus infection.
Zika Virus Strikes French Polynesia. JAMA. 2014;312(4):329. doi:10.1001/jama.2014.8585