Transmission of Guanarito and Pirital viruses among wild rodents, Venezuela

Samples from rodents captured on a farm in Venezuela in February 1997 were tested for arenavirus, antibody against Guanarito virus (GTOV), and antibody against Pirital virus (PIRV). Thirty-one (48.4%) of 64 short-tailed cane mice (Zygodontomys brevicauda) were infected with GTOV, 1 Alston's cot...

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Bibliographic Details
Published in:Emerging infectious diseases 2011-12, Vol.17 (12), p.2209-2215
Main Authors: Milazzo, Mary L, Cajimat, Maria N B, Duno, Gloria, Duno, Freddy, Utrera, Antonio, Fulhorst, Charles F
Format: Article
Language:English
Subjects:
Animals
Animals, Wild - virology
Antibodies, Viral - blood
Arenaviridae Infections - epidemiology
Arenaviridae Infections - transmission
Arenaviridae Infections - veterinary
Arenavirus - classification
Arenavirus - genetics
Arenavirus - immunology
Arenaviruses
Arvicolinae - virology
Communicable Diseases, Emerging - epidemiology
Communicable Diseases, Emerging - transmission
Communicable Diseases, Emerging - veterinary
Control
Disease transmission
Distribution
Female
Guanarito virus
Health aspects
Humans
Male
Phylogeny
Pirital virus Arenaviridae
Sigmodon alstoni
Venezuela - epidemiology
Venezuelan hemorrhagic fever
Virus Shedding
viruses
Zoonoses - transmission
Zygodontmys brevicauda
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Summary:Samples from rodents captured on a farm in Venezuela in February 1997 were tested for arenavirus, antibody against Guanarito virus (GTOV), and antibody against Pirital virus (PIRV). Thirty-one (48.4%) of 64 short-tailed cane mice (Zygodontomys brevicauda) were infected with GTOV, 1 Alston's cotton rat (Sigmodon alstoni) was infected with GTOV, and 36 (64.3%) of 56 other Alston's cotton rats were infected with PIRV. The results of analyses of field and laboratory data suggested that horizontal transmission is the dominant mode of GTOV transmission in Z. brevicauda mice and that vertical transmission is an important mode of PIRV transmission in S. alstoni rats. The results also suggested that bodily secretions and excretions from most GTOV-infected short-tailed cane mice and most PIRV-infected Alston's cotton rats may transmit the viruses to humans.
ISSN:1080-6040
1080-6059
DOI:10.3201/eid1712.110393