cache valley virus, a previously undescribed mosquito-borne agent. | cache valley virus was isolated from culiseta inornata mosquitoes collected in utah. the newly isolated agent causes signs of encephalitis in mice inoculated intracerebrally. it has been classified with the bunyamwera group of anthropod-borne (arbor) viruses. | 1959 | 14402567 |
evaluation of mosquito responses to pyrethroid insecticides topically applied to sheep. | a rise in the incidence of mosquito-transmitted cache valley virus (cvv) in lambs in 2011 prompted a study to evaluate on-animal pyrethroid insecticides to reduce mosquito attacks on sheep. using enclosure traps for 1 night per wk for 6 wk, we compared engorgement rates of mosquitoes given the opportunity to feed on untreated sheep and sheep treated with 1 python insecticide ear tag (containing 10% zeta-cypermethrin and 20% piperonyl butoxide) per animal or 2 synergized permethrin body spray tre ... | 2013 | 23923329 |
cache valley virus: experimental infection in culiseta inornata. | experiments were conducted to examine the dynamics of cache valley virus in culiseta inornata, the probable chief vector of the virus. of about 1500 laboratory reared c. inornata exposed to viraemic suckling mice, 72 took a blood meal. a relatively high precentage (93%) of the latter mosquitoes became infected. the virus increased more than 100-fold in the experimentally infected mosquitoes. the increasing viral titres were noticed after 7 days and after 15 days. peak titres averaged 105.0 (mean ... | 1980 | 6105910 |
distribution of bunyamwera serogroup viruses in north america, 1956-1984. | we attempted to tabulate all bunyamwera serogroup (family bunyaviridae, genus bunyavirus) isolates from north america. by summarizing information from the laboratories of the centers for disease control, data generously shared by other laboratories, and the published literature, we were able to accumulate data regarding 1,372 bunyamwera serogroup viruses. these were: tensaw (664, including 8 from vertebrates), cache valley (396, including 6 from vertebrates), main drain (160, including 14 from v ... | 1986 | 2869708 |
cache valley virus: isolations from mosquitoes in saskatchewan, 1972-1974. | eighteen isolations of cache valley virus (bunyaviridae) were obtained from a total of 113,694 mosquitoes collected in saskatchewan during the summers of 1972 to 1974. most of the isolations were from mosquitoes collected during august. culiseta inornata, the most abundant mosquito (38% of total collected), had the highest minimum vector-infection rate (0.83 isolations per 1000 mosquitoes). the virus was also isolated from culex tarsalis and aedes vexans. it is indicated in the isolations that t ... | 1979 | 38897 |