First detection of Rio Negro virus (Venezuelan equine encephalitis complex subtype VI) in Córdoba, Argentina



Título del documento: First detection of Rio Negro virus (Venezuelan equine encephalitis complex subtype VI) in Córdoba, Argentina
Revue: Memorias do Instituto Oswaldo Cruz
Base de datos: PERIÓDICA
Número de sistema: 000351346
ISSN: 0074-0276
Autores: 1
1
1
1
1
1
1
Instituciones: 1Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Córdoba. Argentina
Año:
Periodo: Feb
Volumen: 107
Número: 1
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental, analítico
Resumen en inglés Rio Negro virus (RNV) (Venezuelan equine encephalitis subtype VI) circulates only in Argentina; in northern provinces, isolates have been obtained from mosquitoes and rodents since 1980 and have been associated with acute febrile illness in humans. However, no studies of RNV have been performed in the central area of the country. We carried out molecular and serological detection of RNV in Córdoba, a province of the central part of the country, in mosquitoes and humans, respectively. One mosquito pool tested positive for alphavirus RNA by reverse transcriptase-nested polymerase chain reaction (RT-nested PCR). Subsequent sequencing determined that this alphavirus grouped with RNV. Serological studies detected antibodies to RNV in one human serum sample, which was obtained during the same period that RNV was detected using the aforementioned molecular methods. This is the first report of RNV circulation in the central area of Argentina, indicating an expansion of its original distribution. These results highlight the importance of strengthening surveillance procedures in endemic areas, as well as in new regions where RNV may emerge
Disciplinas: Medicina
Palabras clave: Salud pública,
Parasitología,
Virus,
Virus Río Negro,
Encefalitis equina,
Argentina
Keyword: Medicine,
Public health,
Parasitology,
Virus,
Río Negro virus,
Equine encephalitis,
Argentina
Texte intégral: Texto completo (Ver HTML)