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experimental studies on the susceptibility of domestic pigs to west nile virus followed by japanese encephalitis virus infection and vice versa.a study on the susceptibility of domestic pigs to west nile virus (wnv) and japanese encephalitis virus (jev) infection was carried out. one batch of pigs was inoculated with wnv followed by jev and another batch was inoculated vice versa. the first batch developed low level of viraemia and haemagglutination-inhibition (hi) antibodies to both viruses. there was a booster effect on the already existing wnv antibodies after challenging with jev. in the second batch the animals developed high level ...19947817897
transovarial transmission of west nile virus in culex vishnui mosquito.the phenomenon of transovarial transmission (tot) of west nile (wn) virus in culex vishnui was studied. the virus was detected in the progeny of both first and second gonotropic cycles (g1 and g2). about 5.56 per cent pools of f1 progeny from the parent females infected by the oral route were found positive for wn virus. this is the first report of tot of wn virus in this species of mosquito. the occurrence of this phenomenon is of considerable importance in view of complex natural cycle of the ...200112040765
detection of west nile virus in six mosquito species in synchrony with seroconversion among sentinel chickens in india.west nile virus (wnv) is a zoonotic flavivirus maintained in mosquito-bird transmission cycle. although humans are accidental hosts, fatal outcomes following wnv infection have been reported from india. studies have identified wnv as an important etiological agent causing acute encephalitis syndrome in assam, northeast india. while circulation of wnv is evident, the role of vectors and avian hosts involved in the transmission remains unclear. in this study we identified local mosquito species fo ...201728061903
antigen distribution pattern of west nile virus in culex tritaeniorhynchus, culex vishnui and culex pseudovishnui mosquitoes.distribution of west nile (wn) virus antigen in different tissues of mosquitoes was studied in three species viz., culex tritaeniorhynchus, c. vishnui and c. pseudovishnui. overall per cent positivity was higher in the intra thoracically inoculated as compared to the orally infected mosquitoes, suggesting the existence of a midgut barrier. in a small number of mosquitoes salivary glands were found negative even though fluorescence was seen in the respective head squashes, suggesting salivary gla ...200112206036
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