Ganaba R, Bélanger D, Dea S, Bigras-Poulin M
Département de pathologie et microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec.
Can J Vet Res. 1995 Jan;59(1):26-33.
Serum antibody analyses for bovine herpesvirus type 1 (BHV-1), bovine viral diarrhea virus (BVDV), bovine respiratory syncytial virus (BRSV), bovine coronavirus (BCV), and bovine rotavirus (BRV) were performed on 527 randomly selected cows, before calving, and on 407 three-week-old calves. In cows and calves, BCV and BRV were the most seroprevalent viruses (80% to 100% according to virus and vaccination status). Bovine respiratory syncytial virus was the least seroprevalent in the cows, independent of the vaccination status. In nonvaccinated cows the seroprevalence to BRSV was 36.7%, and 53.5% in cows vaccinated less than two weeks prior to collecting blood, and 67.6% in cows vaccinated two weeks or more prior to blood collection. In their calves, BHV-1 was the least seroprevalent, independent of the vaccination status. The serological status and antibody titers in calves were generally associated with those of the dam. The occurrence of respiratory diseases in the calves was associated with cow and calf serological profiles (BHV-1, BRSV and BCV in the nonvaccinated group, BHV-1, BVDV and BCV in the vaccinated group). The occurrence of diarrhea was not associated with cow and calf serological profiles but was negatively associated with high level calf serum IgG in the nonvaccinated group (odds ratio = 0.73). Bovine coronavirus and BRV were shed by 1.4% and 4.9% of calves in the nonvaccinated group, and by 0% and 9.9% of calves in the vaccinated group, respectively. Bovine rotavirus shedding was associated with fecal diarrheic consistency at the moment of fecal sampling but not with previous occurrence of diarrhea.
对527头随机挑选的母牛在产犊前以及407头三周龄犊牛进行了针对牛1型疱疹病毒（BHV - 1）、牛病毒性腹泻病毒（BVDV）、牛呼吸道合胞病毒（BRSV）、牛冠状病毒（BCV）和牛轮状病毒（BRV）的血清抗体分析。在母牛和犊牛中，BCV和BRV是血清阳性率最高的病毒（根据病毒和疫苗接种状况，阳性率为80%至100%）。牛呼吸道合胞病毒在母牛中的血清阳性率最低，与疫苗接种状况无关。在未接种疫苗的母牛中，BRSV的血清阳性率为36.7%，在采血前不到两周接种疫苗的母牛中为53.5%，在采血前两周或更长时间接种疫苗的母牛中为67.6%。在它们的犊牛中，BHV - 1的血清阳性率最低，与疫苗接种状况无关。犊牛的血清学状态和抗体滴度通常与母牛的相关。犊牛呼吸道疾病的发生与母牛和犊牛的血清学特征相关（未接种疫苗组中的BHV - 1、BRSV和BCV，接种疫苗组中的BHV - 1、BVDV和BCV）。腹泻的发生与母牛和犊牛的血清学特征无关，但与未接种疫苗组中犊牛血清IgG水平高呈负相关（比值比 = 0.73）。未接种疫苗组中分别有1.4%和4.9%的犊牛排出牛冠状病毒和BRV，接种疫苗组中分别有0%和9.9%的犊牛排出。牛轮状病毒的排出与粪便采样时粪便的腹泻性状有关，但与先前腹泻的发生无关。
