[Study on the distribution of Yersinia enterocolitica in Nantong, Jinagsu Province].
OBJECTIVE
To study the distribution of Yersinia enterocolitica and its virulence factors in Nantong, Jiangsu.


METHODS
Yersinia strains were isolated from livestock and poultry. Conventional PCR was used to detect the virulence factors of all strains and strain 0:8 was analyzed by pulsed-field gel electrophoresis(PFGE).


RESULTS
The combined isolation rate of Yersinia enterocolitica from livestock and poultry was 31.06% and the gene distribution characters were: 39.57% of them were ail-, ystA- , ystB-, yadA- , virF-; 60.43% were ail- , ystA- , ystB + , yadA- , virF- respectively. The two reference strains from America and Denmark showed similar electrophoresis patterns but were significantly different with O:8 strains isolated from China while the serotypes of Yersinia enterocolitica O:3 and O:9 which were the main epidemic strains in China, were not found in this area.


CONCLUSIONS
The pathogenic Yersinia enterocolitis O:3 and O:9 were not found in Nantong,Jiangsu province.
Jiangsu Provincial Center for Diseases Control and Prevention, Nanjing 210009, China.
Ling
L
Gu
Hua
H
Wang
Feng-cai
FC
Zhu
Zhi-yang
ZY
Shi
Xiao-yan
XY
Zeng
Zhao-ying
ZY
Tan
Yu-chun
YC
Xiao
Hai-yan
HY
Qiu
Xin
X
Wang
Dong
D
Jin
Zhi-gang
ZG
Cui
Bing
B
Wang
Biao
B
Kan
Xin-sheng
XS
Wang
Huai-qi
HQ
Jing
Jian-guo
JG
Xu
D000818:Animals; D000829:Animals, Domestic / Q000382:microbiology; D002681:China; D004586:Electrophoresis; D011200:Poultry / Q000382:microbiology; D037521:Virulence Factors / Q000235:genetics / Q000378:metabolism; D015008:Yersinia enterocolitica / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity
D037521:Virulence Factors