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. 2010 Mar;10(2):199-201.
doi: 10.1089/vbz.2008.0156.

Enzootic activity of pixuna and Rio Negro viruses (Venezuelan equine encephalitis complex) in a neotropical region of Argentina

María Belén Pisano  1 , Viviana Elizabeth Ré, Luis Adrián Díaz, Adrián Farías, Marina Stein, María Paz Sanchez-Seco, Antonio Tenorio, Walter Ricardo Almirón, Marta Silvia Contigiani
Affiliations

Enzootic activity of pixuna and Rio Negro viruses (Venezuelan equine encephalitis complex) in a neotropical region of Argentina

María Belén Pisano et al. Vector Borne Zoonotic Dis. 2010 Mar.

Abstract

Venezuelan Equine Encephalitis complex viruses cause epidemics and epizootics periodically in some regions of the Americas. In Argentina, only enzootic Rio Negro virus (AG80-663) (RNV) has been isolated. To survey and identify activity of viruses that belong to Venezuelan Equine Encephalitis complex in a template region of the country, a generic Alphavirus RT-Nested PCR was performed in 99 mosquito pools collected in Chaco province. Five pools were positive, and amplicons were sequenced: four of them clustered with RNV(AG80-663) and one with Pixuna virus. This is the first report of the circulation of Pixuna virus in Argentina, and it confirms enzootic and endemic activity of RNV(AG80-663) in neotropical regions of this country.

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