| sunday canyon virus, a new ungrouped agent from the tick argas (a.) cooleyi in texas. | a new arbovirus was isolated from texas, u.s.a., populations of the cliff swallow parasits argas (argas) cooleyi kohls and hoogstraal, 1960. the virus, named sunday canyon, is serological urelated to any of 185 arbovirus strains or 20 other viral agents with which it was compared. morphologically it resembles bunyamwera viruses and, in common with them, is sensitive to lipid solvents and acid ph, and apparently possesses rna. although considerably resistant to a temperature of 41.5 degrees c, it ... | 1977 | 15436 |
| cache valley virus infection in texas sheep flocks. | cache valley virus (cvv), an arbovirus indigenous to the united states, has been implicated as an important teratogenic agent in sheep. the prevalence and distribution of texas sheep with cvv-specific antibody were investigated. in 1981, 19.1% of 366 sheep located in 22 counties of texas had antibodies specific for cvv. of 50 flocks examined in the major sheep-producing counties in texas, 34 had sheep with antibodies that reacted with cvv, including all sheep tested in 6 flocks that were seropos ... | 1991 | 1917638 |
| evidence that cache valley virus induces congenital malformations in sheep. | an outbreak of congenital abnormalities occurred in sheep at san angelo, texas, between december 1986 and february 1987. of 360 lambs born, 19.2% had arthrogryposis or other musculo-skeletal problems and hydranencephaly (agh), and the total neonatal loss was 25.6%. in 1987, all ewes that were tested with agh lambs had antibody to cache valley virus (cvv), whereas 62% of the ewes with normal lambs had cvv-specific antibody. pre-colostral serum samples from agh lambs had neutralizing antibody to c ... | 1990 | 2107620 |
| laboratory investigation of a naturally occurring outbreak of arthrogryposis-hydranencephaly in texas sheep. | an epizootic of abortions, weak lambs, stillbirths, and congenital arthrogryposis-hydranencephaly occurred in a sheep flock in west texas. the outbreak began during the first week of january 1987 and continued through the third week of february 1987. lambs born after february 1987 were not affected. a high incidence of antibodies to cache valley virus (texas 7856 isolate) was demonstrated in the ewes' serum and in precolostral serum from affected lambs. no virus was isolated from tissues and bod ... | 1989 | 2488650 |
| ovine arthrogryposis and central nervous system malformations associated with in utero cache valley virus infection: spontaneous disease. | gross appearance and histologic lesions seen in 15 newborn lambs in an outbreak of congenital arthrogryposis with hydrocephalus or hydranencephaly (cah) in texas are described. severe arthrogryposis with skeletal muscle hypoplasia was seen in limbs of affected lambs. spinal column deformities were also present. multiple central nervous system (cns) malformations were present in cah lambs including micrencephaly, cerebellar hypoplasia, micromelia, hydrocephalus, hydranencephaly, and porencephaly. ... | 1989 | 2492399 |
| isolations of cache valley virus in texas, 1981. | two strains of the same virus (isolates ar 168 and 7856), were isolated in 1981 from an apparently healthy cow and a sick sheep in tx, u.s.a. these isolates were shown to be members of the bunyamwera serogroup (family bunyaviridae, genus bunyavirus) by complement-fixation tests. serum dilution-plaque reduction neutralization test results indicated that the isolates are closely related to cache valley virus. the virus isolates were characterized by sensitivity to lipid solvent, size (50-100 nm by ... | 1987 | 3101276 |
| theriogenology question of the month. in utero infection of the doe by cvv. | | 2003 | 12762379 |
| serologic evidence of bunyamwera group arbovirus infections in wisconsin and texas deer. | sera of 81 white-tailed deer from south texas and 283 white-tailed deer from wisconsin were tested for neutralizing and hemagglutination-inhibiting antibodies to arboviruses of the bunyamwera group. neutralizing antibodies were detected in 100% of the texas deer sera and hemagglutination-inhibiting antibodies were detected in 61% of those sera collected in 1969 and 78% of those sera collected in 1963. the prevalence of both neutralizing and hemagglutination-inhibiting antibodies in wisconsin dee ... | 1970 | 16512160 |