Identification of Hitherto Unrecognized Arboviruses from Ecuador: Members of Serogroups B, C, Bunyamwera, Patois, and Minatitlan

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Abstract
Three hundred seventy-nine virus isolates were obtained from mosquitoes collected and sentinel hamsters exposed in coastal Ecuador from 1974 to 1978. These included four alphaviruses [Venezuelan equine encephalitis 1B (1), Venezuelan equine encephalitis 1D (35), western equine encephalitis (1) and eastern equine encephalitis (4)]; two flaviviruses [St. Louis encephalitis (3) and Naranjal (6)]; 11 bunyaviruses [Maguari (243), Playas (3), Vinces (33), Turlock (2), Abras (5), Babahoyo (3), Acara (2), Guajara (3), San Juan (6), Pueblo Viejo (3), 18 unspecified Gamboa serogroup viruses, Palestina (7)]; and one vesiculovirus (vesicular stomatitis New Jersey). All but Venezuelan equine encephalitis virus were new to Ecuador, and Naranjal (serogroup B), Playas (Bunyamwera serogroup), Vinces (serogroup C), Abras and Babahoyo (Patois serogroup), San Juan and Pueblo Viejo (Gamboa serogroup) and Palestina (Minatitlan serogroup) are newly recognized viruses. These isolates have enabled us to 1) expand our knowledge of the geographic distribution of recognized viruses, 2) expand our knowledge of the members of certain serogroups and 3) establish two new serogroups (Gamboa and Minatitlan).

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