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Epidemiologia e Serviços de Saúde

versión impresa ISSN 1679-4974versión On-line ISSN 2337-9622

Resumen

SAMPAIO, Gilmara de Souza et al. Expansion of Zika virus circulation from Africa to the Americas, 1947-2018: a literature review. Epidemiol. Serv. Saúde [online]. 2019, vol.28, n.2, e2018411.  Epub 22-Ago-2019. ISSN 1679-4974.  http://dx.doi.org/10.5123/s1679-49742019000200022.

Objective:

to describe the temporal and geographical expansion of Zika virus (ZIKV) circulation in countries and territories, from the time it was first isolated until 2018.

Methods:

This was a non-systematic literature review covering the period from 1947 to 2018 using the MEDLINE database and World Health Organization estimates.

Results:

Since its isolation in 1947, ZIKV circulation spread through Africa, Asia and the Pacific before reaching the Americas in 2013, causing serious clinical manifestations; the highest seroprevalence rates were recorded in Yap (74%) and in Brazil (63%); genetic mutations, absence of immunity and high vector susceptibility may have influenced ZIKV transmissibility and help to explain the magnitude of its expansion.

Conclusion:

The spread of ZIKV circulation in the Americas was the most extensive recorded thus far, possibly as a result of population and geographical characteristics of the sites where the virus circulated.

Palabras clave : Zika Virus, Flavivirus; Epidemiology; Epidemics; Congenital Abnormalities; Review Literature as Topic.

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