First isolated in 1947 and first described in a paper in 1952, Zika has long been known to occur in Africa and Southeast Asia—but until a decade ago, fewer than 15 cases had been described in the scientific literature. In 2007, the virus caused a big outbreak on Yap, an island group in the Western Pacific that is part of the Federated States In 2015-2016, simultaneous circulation of dengue, Zika and chikungunya in the municipality of Rio de Janeiro (Brazil) was reported. We conducted an ecological study to analyse the spatial distribution of dengue, Zika and chikungunya cases and to investigate socioeconomic factors associated with individual and combined disease incidence in 2015-2016. Last updated: 7:50 PM ET, Fri April 5, 2019. The Centers for Disease Control and Prevention (CDC) has updated Turks and Caicos' Zika status and declared the islands Zika free. The country is one of several that had past Zika transmission but no outbreak, and the last confirmed case was in January 2017. In October of last year, the World Health Last Update: August 7, 2023. Cases of Zika infection were reported in Brazil in late 2014 and early 2015. It then rapidly spread through South and Central America. The first reported case of locally transmitted Zika in the continental United States was the week of July 24, 2016. As of April 19, 2017, 223 cases of Zika from presumed local Global overview. As of December 2021, a total of 89 countries and territories have had documented evidence of autochthonous mosquito-borne transmission of Zika virus (ZIKV), distributed across five of the six WHO Regions (all except the Eastern Mediterranean Region).1 Since the last epidemiological update in 2019, two countries have been added The islands saw the world's largest outbreak before Brazil: 20,000 cases. It may have been linked to birth defects — research is still being done. And in 2014 it seemed to disappear. .

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