Dean-Nystrom E A, Bosworth B T, Moon H W, O'Brien A D
Enteric Diseases and Food Safety Research Unit, National Animal Disease Center, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa 50010, USA.
Infect Immun. 1998 Sep;66(9):4560-3. doi: 10.1128/IAI.66.9.4560-4563.1998.
Enterohemorrhagic Escherichia coli (EHEC) strains require intimin to induce attaching and effacing (A/E) lesions in newborn piglets. Infection of newborn calves with intimin-positive or intimin-negative EHEC O157:H7 demonstrated that intimin is needed for colonization, A/E lesions, and disease in cattle. These results suggest that experiments to determine if intimin-based vaccines reduce O157:H7 levels in cattle are warranted.
肠出血性大肠杆菌(EHEC)菌株需要紧密黏附素才能在新生仔猪中诱导黏附和损毁(A/E)性损伤。用紧密黏附素阳性或阴性的EHEC O157:H7感染新生牛犊表明,紧密黏附素是牛体内定植、A/E损伤和发病所必需的。这些结果表明,有必要进行实验来确定基于紧密黏附素的疫苗是否能降低牛体内O157:H7的水平。