Emergence of genotype III St. Louis encephalitis virus in the western United States potentially linked to a wetland in Argentina.

Autor: Beranek M; Instituto de Virología 'Dr. J.M. Vanella,' Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina., Torres C; Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Buenos Aires C1113AAD, Argentina; Consejo Nacional de Investigación Científica y Técnica (CONICET), Argentina., Laurito M; Departamento de Ciencias Básicas y Tecnológicas, Universidad Nacional de Chilecito, Chilecito, La Rioja 5360, Argentina; Consejo Nacional de Investigación Científica y Técnica (CONICET), Argentina., Farías A; Instituto de Virología 'Dr. J.M. Vanella,' Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina., Contigiani M; Instituto de Virología 'Dr. J.M. Vanella,' Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina., Almirón W; Instituto de Investigaciones Biológicas y Tecnológicas, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba 5000, Argentina; Consejo Nacional de Investigación Científica y Técnica (CONICET), Argentina., Diaz A; Instituto de Virología 'Dr. J.M. Vanella,' Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba 5000, Argentina; Consejo Nacional de Investigación Científica y Técnica (CONICET), Argentina. Electronic address: adrian.diaz@fcm.unc.edu.ar.
Jazyk: angličtina
Zdroj: Acta tropica [Acta Trop] 2024 Feb; Vol. 250, pp. 107088. Date of Electronic Publication: 2023 Dec 01.
DOI: 10.1016/j.actatropica.2023.107088
Abstrakt: St. Louis encephalitis virus (SLEV) is endemic in the Americas and its transmission networks involve Culex mosquitoes and avian species. In 2015, a human encephalitis outbreak took place in Arizona and California, indicating the re-emergence of this pathogen in the US. Viral strains isolated in that outbreak belong to genotype III SLEV previously detected only in South America. In this study, genotype III SLEV was detected in mosquitoes collected in Mar Chiquita Lagoon (Córdoba, Argentina), an overwintering site for numerous migratory bird species. The genotype III SLEV sequence detected in this site shares the closest known ancestor with those introduced in Arizona in 2015. Our results highlight the potential significance of wetlands as key sites for arbovirus maintenance and emergence.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023. Published by Elsevier B.V.)
Databáze: MEDLINE
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