| bunyavirus isolations from mosquitoes in the western canadian arctic. | strains of california encephalitis virus (snowshoe hare subtype) were isolated from 8 of 475 pools comprising 23 747 unengorged female mosquitoes of five species collected at three of six locations throughout the mackenzie valley of the northwest territories, canada, from latitudes 60 to 69 degrees n between 10 and 24 july 1976. minimum field infection rates included 1:2734 for aedes communis, 1:256 to 1:3662 for a. hexodontus and 1:911 to 1:1611 for a. punctor. northway virus was also isolated ... | 1977 | 18541 |
| bunyavirus development in arctic and aedes aegypti mosquitoes as revealed by glucose oxidase staining and immunofluorescence. | northway virus replication has been detected in salivary glands of wild-caught culiseta inornata and aedes communis mosquitoes from the western canadian arctic after incubation at 4 degrees c for 9 to 11 months, and after incubation at 13 degrees c for 3 to 4 months after they received virus by oral ingestion or intrathoracic injection. aedes hexodontus supported northway virus replication after incubation at 13 degrees c for one month after intrathoracic injection. aedes aegypti supported north ... | 1979 | 44464 |
| california encephalitis virus endemicity in the yukon territory, 1972. | sera from 218 of 1574 (14%) small mammals collected in the yukon territory between 14 may and 13 august 1972 neutralized a yukon strain of california encephalitis virus (snowshoe-hare subtype). these included 133 of 319 (42%) snowshoe hares (lepus americanus), 84 of 1243 (7%) ground squirrels (citellus undulatus) and 1 of 12 (8%) tree squirrels (tamiasciurus hudsonicus). california encephalitis virus (snow-shoe hare subtype) was isolated from four pools of unengorged aedes communis mosquitoes co ... | 1973 | 4146347 |
| activity of california encephalitis group viruses in entrelacs (province of quebec, canada). | during the summer of 1979, indicator rabbits were placed in three sites in entrelacs (laurentian area, province of quebec) and mosquitoes were collected in order to monitor arbovirus activity in the area. eight seroconversions to california encephalitis (ce) group viruses were detected in rabbits during june, july, and august. twenty-five strains identified as members of the ce group were isolated: 3 were obtained from viremic rabbit sera, 1 from adult aedes communis reared in the laboratory fro ... | 1982 | 6126267 |
| yukon isolates of snowshoe hare virus, 1972-1982. | bunyaviruses including 53 strains of snowshoe hare (ssh) and 4 of northway (nor) were isolated from 132,428 unengorged adult female mosquitoes of 7 species collected throughout the boreal forest of the yukon territory and open woodland terrain in the mackenzie valley, northwest territories, canada during 8 of 11 arctic summers from 1972 through 1982. isolations of ssh virus were also achieved from mosquito larvae during 1974 and 1975. percentage virus infection rates of important vectors were ae ... | 1983 | 6135219 |
| [distribution of viruses from the californian encephalitis serogroup (bunyaviridae, bunyavirus) in the northern expanses of russia]. | the study was carried out in 1983-1991 and covered a territory of about 10 x 10(6) km2 in various physico-geographic areas (east fennoscandia, northern russian plain, west siberia, central siberia, north-eastern siberia, and northern pacific region) in the arctic, subarctic, northern-central-southern taiga, forest-steppe, and steppe in northern russia. a total of 251 strains were isolated from 1391,900 mosquitoes, identified as the california group snowshoe hare (83), inkoo (44), and tahyna (2) ... | 1997 | 9424850 |
| california encephalitis virus proliferation in yukon mosquitoes incubated at low temperatures. | replication of a subarctic bunyavirus, california encephalitis (snowshoe hare subtype), was detected in salivary glands and thoraces of wild-caught aedes communis mosquitoes from the yokon territory, after intrathoracic inoculation with 0.1 to 100 mouse ld50 virus, and incubation for 7 to 21 days throughout their viable temperature range of 0 to 23 degrees c. immunoperoxidase staining confirmed that viral replication occurred in the cytoplasm of acinar cells of salivary glands, both by ligh micr ... | 1976 | 963625 |
| [circulation of viruses of the california serocomplex (bunyaviridae, bunyavirus) in the central and southern parts of the russian plain]. | seventy strains of california group viruses were isolated in the central and southern territories of the russian plain situated in the southern taiga, mixed forest, broad-leaved forest, forest-steppe, steppe, and semiarid zones. sixty-three of these were isolated from 873,300 mosquitoes, 4 from patients, and 3 from rodents. 57.1% of strains were isolated from aedes communis and the associated species, 28.5% from aedes excrucians and associated species, and rarely from other mosquito species. the ... | 1998 | 9559528 |