Yanase T, Muramatsu Y, Ueno H, Morita C
Department of Veterinary Public Health, School of Veterinary medicine, Rakuno Gakuen University, Hakkaido, Japan.
Microbiol Immunol. 1997;41(2):73-5. doi: 10.1111/j.1348-0421.1997.tb01184.x.
The prevalence and seasonal variations of infection by Coxiella burnetti in cattle were investigated seroepidemiologically on a farm in Hokkaido, Japan, by an immunofluorescent antibody test. A total of 364 serum samples from 28 cows were collected from August 1993 to October 1995 in two barns on the farm. It was found that the number of antibody-positive cows and their antibody titers were significantly elevated in winter and decreased in summer. In addition, antibodies were detectable in seroconverted cows for about five months.
通过免疫荧光抗体试验，对日本北海道一个农场的牛进行血清流行病学调查，以研究伯氏考克斯体感染的流行情况和季节性变化。1993年8月至1995年10月期间，从该农场两个牛舍的28头奶牛身上共采集了364份血清样本。结果发现，抗体阳性奶牛的数量及其抗体滴度在冬季显著升高，在夏季则下降。此外，血清转化的奶牛体内抗体可检测约五个月。
