在约翰氏病患病率较低的奶牛群中，鸟分枝杆菌副结核亚种的子宫内传播检出率较低。

Low rate of detectable in utero transmission of Mycobacterium avium subspecies paratuberculosis in a dairy herd with a low prevalence of Johne's disease.

作者信息

Adaska John M, Whitlock Robert H

机构信息

California Animal Health and Food Safety Laboratory System, Tulare Branch, School of Veterinary Medicine, University of California, Davis, 18830 Road 112, Tulare, CA 93274, USA.

出版信息

J Vet Diagn Invest. 2012 Jan;24(1):153-5. doi: 10.1177/1040638711425947. Epub 2011 Dec 6.

DOI:10.1177/1040638711425947

PMID:22362947

Abstract

In an effort to correlate the likelihood of in utero transmission of Mycobacterium avium subsp. paratuberculosis (MAP), the causal organism of Johne's disease, with the test status of the dam, tissues from neonatal calves borne to known test status cows were cultured for the presence of MAP. Tissues from a single calf borne to a test-positive cow shedding large numbers of organisms in the feces were positive for MAP. The detected overall transmission rate was approximately 2% (1/49), and the detected transmission rate in cows that were fecal culture positive and serum enzyme-linked immunosorbent assay suspect or positive was approximately 4.3% (1/23).

摘要

为了将副结核分枝杆菌（MAP）——约内氏病的致病原——在子宫内传播的可能性与母牛的检测状况相关联，对已知检测状况的母牛所生新生犊牛的组织进行培养，以检测是否存在MAP。一头由粪便中排出大量MAP的检测呈阳性的母牛所生的单头犊牛的组织检测出MAP呈阳性。检测到的总体传播率约为2%（1/49），在粪便培养呈阳性且血清酶联免疫吸附测定可疑或呈阳性的母牛中，检测到的传播率约为4.3%（1/23）。