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Journal of Clinical Microbiology, December 2000, p. 4672-4675, Vol. 38, No. 12
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

High-Pathogenicity Island of Yersinia spp. in Escherichia coli Strains Isolated from Diarrhea Patients in China

Jian-guo Xu,1,* Bokun Cheng,1 Xuanqin Wen,2 Shuyu Cui,2 and Changyun Ye1

Institute of Epidemiology and Microbiology, Chinese Academy of Preventive Medicine, Beijing,1 and Center for Diseases Control, Shandong Province, Jinan,2 China

Received 2 May 2000/Returned for modification 3 June 2000/Accepted 8 August 2000

The high-pathogenicity island (HPI) of Yersinia has been observed in 93% of 60 enteroadhesive Escherichia coli strains and 80% of E. coli strains isolated from blood samples. In the present study we investigated 671 fecal samples from patients with diarrhea in Shandong Province, China, and isolated HPI-harboring E. coli from 6.26% of the samples. The isolation rates for patients with diarrhea in three age groups, 10 to 20, 30 to 40, and 50 to 60 years, were 6.70, 12.35, and 10.81%, respectively. Therefore, HPI-harboring E. coli is the third most frequently isolated enteric pathogen from patients with diarrhea. Vomiting and abdominal pain were recorded for 33.33 and 66.67% of the patients, respectively. Stools with blood were observed for 9.52% of the patients. Twenty-four of 42 (57%) patients experienced a temperature over 37.4°C. These observations indicate that HPI-harboring E. coli is one of the major causes of diarrheal disease in China and that the clinical symptoms caused by HPI-harboring E. coli differ from those caused by enteroadhesive E. coli.

* Corresponding author. Mailing address: Institute of Epidemiology and Microbiology, Chinese Academy for Preventive Medicine, Beijing 10206, People's Republic of China. Phone: 86-10-61739579. Fax: 86-01-61730233. E-mail: xujg{at}public.bta.net.cn.

Journal of Clinical Microbiology, December 2000, p. 4672-4675, Vol. 38, No. 12
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.


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