Zika epidemiology update - May 2024

Overview
World Health Organization compiles periodic summaries of the global epidemiology of Zika virus transmission, and the most recent compilation of data has been published as a review of the recent epidemiology of Zika virus infection in the American Journal of Tropical Medicine and Hygiene, describing data through the end of 2023. The map of countries with Zika transmission and list of countries with Zika and vectors has been updated to reflect data as of May 2024. Zika transmission persists in several countries but has generally been at low levels throughout 2018 to the present. Since the previous WHO Zika epidemiological update was published in 2022, three countries have been added to the list of countries with evidence of autochthonous, mosquito-borne transmission, and two countries to the list of countries with established Aedes aegypti populations but no documented Zika transmission. Findings underscore the importance of sustained vigilance to ensure integrated country preparedness for early detection and response, monitoring risk, vector control and the development of diagnostics, vaccines, and therapeutics.