Bovine calicivirus VESVBos1 A strain

of Vesicular exanthema of swine virus, isolated from cattle.

Bovine coronavirus (BCoV) A species in the genus Coronavirus which causes neonatal calf diarrhea. Under natural conditions, affects calves 1 day to 3 weeks old. Only infects bovine species. Virus can be found in feces and diagnosis made by electron microscopy examination, reverse passive hemagglutination or ELISA. Virus of the same serotype has also been isolated from trachea and lungs of calves with respiratory disease, and on injection into

Bovine Coronavirus (BCoV)

newborn calves by the nasal route caused both respiratory disease and diarrhea. The virus replicates in cell cultures of bovine kidney, bovine embryonic lung or the human rectal tumor cell line HRT-18. Another disease, winter dysentery of adult cattle, has been associated with the presence of Bovine coronavirus in the feces of affected animals.

Synonym: neonatal calf diarrhea coron-avirus.

McNulty MS et al (1984) Vet Microbiol 9, 425 Mebus CA et al (1973) Am J Vet Res 34, 145 Reynolds DJ et al (1985) Arch Virol 85, 71

bovine encephalitis herpesvirus Synonym for Bovine herpesvirus 5.

bovine enteric calicivirus (BoCV) An unas-signed species in the family Caliciviridae. Identified in fecal samples of cattle in USA and in England (Newbury agent), but no antigenic cross-reaction was found. Significance and importance in calf diarrhea not clear.

Bridger JC et al (1984) Infect Immun 43, 133

bovine enteric torovirus See Bovine torovirus.

Bovine enterovirus (BEV) Two serotypes of Bovine enterovirus are recognized within the genus Enterovirus.

bovine enteroviruses 1 and 2 (BEV-1 and BEV-2) Serotypes of Bovine enterovirus in the genus Enterovirus. Picornaviruses isolated in cell cultures from bovine tissues or excreta. There are two serotypes and both agglutinate bovine erythrocytes at 5-8°C. Serotype 2 viruses have only been isolated from domestic cattle, but serotype 1 viruses have been isolated from a wide range of species including domestic cattle, Bos taurus, water buffalo, Bubalus bubalis, sheep, Ovis aries, goats, Capra hircus, Sika deer, Cervus nippon, African buffalo, Syncerus caffer, and impala, Aepyceros melampus. Transmission is by oral-fecal spread, and the bovine enteroviruses are very resistant to acid and alkali so they pass easily through the digestive tract. Most infections are sub-clinical, but occasional cases of abortion, still-birth and infertility in bulls have been ascribed to bovine enterovirus infec tion. One strain is reported to produce diarrhea in colostrum-deprived calves. Synonym: ecboviruses.

Knowles NJ and Barnett ITR (1985) Arch Virol 83, 141

bovine enzootic leukosis virus Synonym for Bovine leukemia virus.

Bovine ephemeral fever virus (BEFV) A

species in the genus Ephemerovirus isolated in S Africa, Australia and Japan from cattle with fever, respiratory symptoms, increased salivation, lacrimation, joint pains, tremors and stiffness. Cattle and water buffalo are susceptible to clinical disease but other ruminant species may have subclinical infection. The disease is of short duration and is not contagious, and in nature is spread only by an insect bite. Virus replicates in mice and in cell cultures such as BHK21. Loses pathogenicity for calves on passage in newborn mice, hamsters or BHK21 cells. Can be isolated in eggs by inoculation of embryo. In Kenya transmitted by Culicoides sp, probably from the reservoir hosts buffalo and water buck. No evidence of human infection. Synonyms: dengue fever of cattle virus; ephemeral fever virus; bovine epizootic fever virus; bovine influenza virus; three day stiff-sickness virus; stiffsiekte.

Della-Porta AJ and Brown F (1979) J Gen Virol 44, 99

Gaffar Elamin MA and Spradbrow PB (1978) J Hyg, Camb 81, 1

Walker PJ et al (1994) J Gen Virol 75, 1889

bovine epitheliosis virus Synonym for Alcelaphine herpesvirus 1.

bovine epizootic fever virus Synonym for Bovine ephemeral fever virus.

Bovine foamy virus (BFV) A species in the genus Spumavirus. Isolated from buffy coat, spleen, lymph nodes and milk of lymphosarcomatous and normal cattle. Can be propagated in BHK21 cells producing syncytia. Little free virus is produced. Infection appears to be common in cattle in USA and Europe, but there is little evidence of disease. Produces a persistent infection. Different from Bovine respiratory syncytial virus.

Dermott E et al (1971) J Gen Virol 12, 105 Greig AS (1978) Can J Comp Med 43, 112 Woode GN and Smith K (1973) J Gen Virol 21, 425

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