[post-epizootic activity of western equine encephalitis virus in argentina].it is shown here the wee virus activity in argentina in 1983-1986 post-epizootic period. a surveillance system was established by the equine case notification and the sentinel animal method. among the thirteen equine focus notified between september 1983-september 1985 in córdoba and santa fe provinces, 5 presumptive cases out of 16 sick horses were confirmed by the hemagglutination inhibition test for wee epizootic virus. twenty eight notified human cases were studied with negative results. the ...19938234736
serological survey for arboviruses in córdoba province, argentina. 19655840639
transmission of western equine encephalomyelitis virus by argentine aedes albifasciatus (diptera: culicidae).aedes albifasciatus (macquart) has been considered a potential vector of western equine encephalitis (wee) virus in argentina because it has been found naturally infected, it is susceptible to infection per os, and its distribution and feeding habits are compatible with those of an epizootic and epidemic vector. ae. albifasciatus females collected in the vicinity of cordoba, argentina, were highly susceptible to wee virus perorally (id50 less than 0.5 vero cell plaque-forming units) when fed on ...19921404265
peroral susceptibility of aedes albifasciatus and culex pipiens complex mosquitoes (diptera: culicidae) from argentina to western equine encephalitis virus.the transmission cycle of western equine encephalitis (wee) virus in south america is unknown. a wee virus strain was isolated from aedes albifasciatus in argentina during the wee epizootic of 1982-83. also, culex pipiens from argentina was reported to be able to transmit wee virus experimentally, but other results indicate that cx. pipiens from the usa is refractory to this virus. we determined the susceptibility of argentina strains of ae. albifasciatus and culex pipiens complex mosquitos to i ...19902103643
[concomitant activity of 2 bunyaviruses in horses in argentina].a serologic survey of horses for kairi (kri) and cache valley (cv), two related bunyaviruses, was conducted simultaneously in cordoba and santa fe provinces, argentina, during late 1983 and 1984. the prevalence of neutralizing antibodies only for kri was 13.3% and only for cv was 40.0%; but if the total positive sera for kri and cv were taken into account, the prevalence reached 48.3 and 75.0%, respectively. the prevalence for cv was higher than for kri in cordoba (p less than 0.01), but both we ...19902126879
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