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nemestrina) from the TNPRC breeding colony by age group.
Table 5 shows the prevalence of WNV antibodies by age group among 403 captive baboons (Papio spp.) bled from August to November 2002 at the TNPRC. Overall, the prevalence of WNV antibodies among the baboons was higher (51.36%) compared to the rhesus (39.39%) and pigtail (20.25%) macaques.
A second survey of adult mosquitoes was made in the breeding colony at TNPRC from July 29 to October 31, 2002, to determine the vector abundance and species composition, after the intensive mosquito control effort in St.
The results of our serosurvey indicate that approximately 36% of the primates housed outdoors at TNPRC were infected with WNV during the spring or summer of 2002.
Animals at TNPRC are observed twice a day for illness, and ill animals are moved indoors to a clinical area for diagnosis and treatment.
In view of the frequency of WNV infection observed among nonhuman primates in the breeding colonies at TNPRC, one obvious question is whether these animals could serve as amplifying hosts of the virus to infect biting mosquitoes.
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