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Epidemiologia e Serviços de Saúde
Print version ISSN 1679-4974On-line version ISSN 2237-9622
Abstract
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 Aug 22, 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.
Keywords : Zika Virus, Flavivirus; Epidemiology; Epidemics; Congenital Abnormalities; Review Literature as Topic.