Cache Valley virus in the Del Mar Va Peninsula. I. Virologic and serologic evidence of infection
Buescher, E.L.; Byrne, R.J.; Clarke, G.C.; Gould, D.J.; Russell, P.K.; Scheider, F.G.; Yuill, T.M.
American Journal of Tropical Medicine and Hygiene 19(3): 493-502
1970
ISSN/ISBN: 0002-9637 PMID: 4392807 Document Number: 23949
The following is substantially the authors' abstract. An arbovirus, shown to be a member of the Bunyamwera group and closely related to Cache Valley virus, was recovered 12 times from salt-marsh mosquitos collected from off-shore islands in Virginia between 1961 and 1964. Mosquito infection was detected only in August-October, even though surveys for infection were carried out annually in spring and summer. Aedes sollicitans (Wlk.) formed 78% of the mosquitos caught and yielded six strains of virus; A. taeniorhynchus (Wied.) formed 11% of the catch and yielded five strains, and one strain was recovered from members of the complex of Anopheles bradleyi King and A. crucians Wied. Serological surveys made to identify the. natural hosts of the virus in and near the study sites showed that few small wild vertebrates possessed serum neutralizing antibody. On the other hand, antibody was frequently found in sera from large vertebrates of the area, including cattle, horses and man, among which antibody was most prevalent in those in coastal areas.