Journal
MICROBIOLOGY AND IMMUNOLOGY
Volume 47, Issue 1, Pages 45-49Publisher
WILEY
DOI: 10.1111/j.1348-0421.2003.tb02784.x
Keywords
Escherichia coli O157 : H7; beetles; animal
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In an epidemiological survey, Escherichia coli O157:117 was isolated from the intestine 4 of 113 dung beetle Catharsius molossus captured below ground at Tongshan County, Jiangsu Province of China. In parallel, 10 strains of E. coli O157:117 were isolated from fecal samples of 383 diarrhea patients from the same region. Most importantly, using pulsed field gel electrophoresis (PFGE) of chromosomal DNA restriction fragments and PCR method, we found that the PFGE pattern and virulence genes of beetle isolates were identical to those of the human isolates, such as Shiga-toxins (stx) and enterohemorrhagic Escherichia coli hemolysin A (EHEC-hlyA). Therefore, dung beetle might acquire pathogenic E. coli O157:117 through contact with feces of domestic animals.
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