Cornick Nancy A, Helgerson Amy F, Sharma Vijay
Department of Veterinary Microbiology and Preventative Medicine, 2130 Vet Med Building, Iowa State University, Ames, IA 50010, USA.
Appl Environ Microbiol. 2007 Jan;73(1):344-6. doi: 10.1128/AEM.01328-06. Epub 2006 Nov 3.
Isogenic strains of Escherichia coli O157:H7, missing either stx(2) or the entire Stx2-encoding phage, were compared with the parent strain for their abilities to colonize sheep. The absence of the phage or of the Shiga toxin did not significantly impact the magnitude or duration of shedding of E. coli O157:H7.
将缺失stx(2)或整个编码志贺毒素2的噬菌体的大肠杆菌O157:H7同基因菌株,与亲本菌株在定殖绵羊方面的能力进行了比较。噬菌体或志贺毒素的缺失对大肠杆菌O157:H7排出的数量或持续时间没有显著影响。