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Review
. 2020 May 19;19(1):19.
doi: 10.1186/s12941-020-00360-4.

Venezuelan equine encephalitis virus: the problem is not over for tropical America

Affiliations
Review

Venezuelan equine encephalitis virus: the problem is not over for tropical America

Camilo Guzmán-Terán et al. Ann Clin Microbiol Antimicrob. .

Abstract

The equine encephalitis viruses, Venezuelan (VEEV), East (EEEV) and West (WEEV), belong to the genus alphavirus, family Togaviridae and still represent a threat for human and animal public health in the Americas. In both, these infections are characterized by high viremia, rash, fever, encephalitis and death. VEEV encephalitis is similar, clinically, to other arboviral diseases, such as dengue, Zika or chikungunya. Most of the alphaviruses are transmitted between vertebrates and mosquitoes. They are able to replicate in a wide number of hosts, including mammals, birds, reptiles, amphibian and arthropods. The VEEV has enzootic and epizootic transmission cycles. At the enzootic one, enzootic strains (subtype I, serotypes D-F and serotypes II-VI) are continuously circulating between mosquitoes and wild rodents in tropical forests and mangroves of the Americas. The main reseroivrs are wild rodent species of the subfamily Sigmodontinae. However, bats can be also accidental reservoirs of VEEV. In this article, we reviewed the main features, epidemiology, clinical aspects and the current perspectives of the VEEV.

Keywords: Alphavirus; Americas; Arbovirus; Chiroptera; Equine; Zoonoses.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Geographical distribution of the equine encephalitis in the Americas. a VEEV. b EEEV. c WEEV
Fig. 2
Fig. 2
Time evolution of the epizootics of VEEV in the Americas [, , , –.]

References

    1. Aguilar PV, Estrada-Franco JG, Navarro-Lopez R, Ferro C, Haddow AD, Weaver SC. Endemic Venezuelan equine encephalitis in the Americas: hidden under the dengue umbrella. Future Virol. 2011;6(6):721–740. - PMC - PubMed
    1. Juarez D, Guevara C, Wiley M, Torre A, Palacios G, Halsey E, et al. Isolation of complete equine encephalitis virus genome from human swab specimen. Peru Emerg Infect Dis. 2018;24(8):1578–1580. - PMC - PubMed
    1. Kumar B, Manuja A, Gulati BR, Virmani N, Tripathi BN. Zoonotic viral diseases of equines and their impact on human and animal health. Open Virol J. 2018;12:80–98. - PMC - PubMed
    1. Carrera JP, Bagamian KH, Travassos AP, Wang E, Beltran D, Gundaker ND, et al. Human and equine infection with alphaviruses and flaviviruses in panamá during 2010: a cross-sectional study of household contacts during an encephalitis outbreak. Am J Trop Med Hyg. 2018;98(6):1798–1804. - PMC - PubMed
    1. Hahn CS, Lustig S, Strauss EG, Strauss JH. Western equine encephalitis virus is a recombinant virus. Proc Natl Acad Sci USA. 1988;85(16):5997–6001. - PMC - PubMed

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