Garber L P, Salman M D, Hurd H S, Keefe T, Schlater J L
USDA:APHIS: National Animal Health Monitoring System, Fort Collins, CO 80521.
J Am Vet Med Assoc. 1994 Jul 1;205(1):86-91.
Fecal samples from 7,369 calves on 1,103 farms were examined for cryptosporidia in a nationwide survey, using monoclonal antibody technique. Cryptosporidium oocysts were found in calves from 652 (59.1%) of the farms and in 1,648 (22.4%) of the tested calves. Almost half the calves between 7 and 21 days of age had cryptosporidia in their fecal samples. Prevalence was highest during the summer. Farms with multiple-cow maternity facilities and farms with > 100 milking cows were the most likely to have calves with cryptosporidia.
在一项全国性调查中，使用单克隆抗体技术对来自1103个农场的7369头犊牛的粪便样本进行了隐孢子虫检测。在652个（59.1%）农场的犊牛以及1648头（22.4%）受检测的犊牛中发现了隐孢子虫卵囊。7至21日龄的犊牛中，近一半的粪便样本含有隐孢子虫。夏季患病率最高。拥有多奶牛产房设施的农场以及拥有超过100头泌乳奶牛的农场，其犊牛感染隐孢子虫的可能性最大。
