Natural Enzootic Vectors of Venezuelan equine encephalitis virus in the Magdalena Valley, Colombia

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Ferro, Cristina ; Boshell, Jorge ; Moncayo, Abelardo C. ; Gonzalez, Marta ; Ahumada, Marta L. ; Kang, Wenli ; Weaver, Scott C.
• Description:
  To characterize the transmission cycle of enzootic Venezuelan equine encephalitis virus (VEEV) strains believed to represent an epizootic progenitor, we identified natural vectors in a sylvatic focus in the middle Magdalena Valley of Colombia. Hamster-baited traps were placed into an active forest focus, and mosquitoes collected from each trap in which a hamster became infected were sorted by species and assayed for virus. In 18 cases, a single, initial, high-titered mosquito pool representing the vector species was identified. These vectors included Culex (Melanoconion) vomerifer (11 transmission events), Cx. (Mel.) pedroi (5 transmissions) and Cx. (Mel.) adamesi (2 transmissions). These results extend the number of proven enzootic VEEV vectors to 7, all of which are members of the Spissipes section of the subgenus Melanoconion. Our findings contrast with previous studies, which have indicated that a single species usually serves as the principal enzootic VEEV vector at a given location.
• Subjects:
  Alphavirus Animals Arboviruses Arthropod Vector Colombia Cricetinae Culex Culicidae Encephalitis Virus Encephalitis Virus, Venezuelan Equine Encephalomyelitis, Venezuelan Equine Insect Vectors Research Venezuelan Equine

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• Source:
  Emerg Infect Dis. 9(1):49-54.
• Document Type:
  Journal Article
• Volume:
  9
• Issue:
  1
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:731ec7a0dd6b641aaec843dc99a6655b756583bf32d468e2b8656b5216e2a381
• Download URL:
  https://stacks.cdc.gov/view/cdc/13961/cdc_13961_DS1.pdf
• File Type:
  [PDF - 267.59 KB ]