stx2vha is the dominant genotype of Shiga toxin-producing Escherichia coli O157:H7 isolated from patients and domestic animals in three regions of China.
Shiga toxin-producing Escherichia coli(STEC) O157: H7 strains were isolated from domestic animals and patients from Xuzhou City, Jiangsu Province, China and the bordering Anhui and Henan Provinces and were examined for the stx genotype. Of 390 strains, 277 were identified as genotype stx2vha ; 41, stx2 ; 51, stx2-stx1 ; 1, stx2-stx2vha-stx1 ; 5, stx2-stx2vha ; and 15 were un-typeable. Of the 277 stx2vha-bearing isolates, 116 were isolated from goats; 42, cattle; 38, hens, and 35 from pigs. The study shows stx2vha is the dominant genotype and goats are an important reservoir.
Zheng
Han
H
Department of Diarrhea Diseases, National Institute for Communicable Diseases Prevention and Control, China Center for Disease Prevention and Control.
Jing
Huaiqi
H
Wang
Hua
H
Xia
Shengli
S
Hu
Wangfu
W
Cui
Shuyu
S
Bi
Zhenqiang
Z
Yang
Jinchuan
J
Pang
Bo
B
Zhao
Guangfa
G
Zhang
Jin
J
Li
Hongwei
H
Xu
Jianguo
J
D000818:Animals; D002417:Cattle; D002645:Chickens; D002681:China; D004197:Disease Reservoirs / Q000382:microbiology; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000382:microbiology*; D019453:Escherichia coli O157 / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D005243:Feces / Q000382:microbiology; D005798:Genes, Bacterial; D006041:Goats / Q000382:microbiology; D006463:Hemolytic-Uremic Syndrome / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D022641:Shiga Toxin 2 / Q000235:genetics* / Q000378:metabolism; D013045:Species Specificity; D013552:Swine
D022641:Shiga Toxin 2