Comparison of enterohemorrhagic Escherichia coli (EHEC) O157 and EHEC non-O157 isolates from diarrheal patients in the Republic of Korea.

Comparison of enterohemorrhagic Escherichia coli (EHEC) O157 and EHEC non-O157 isolates from diarrheal patients in the Republic of Korea. Jpn J Infect Dis. 2016 Dec 22;: Authors: Oh KH, Jung SM, Shin E, Chung GT, Seong WK, Cho SH Abstract We compared 47 enterohemorrhagic Escherichia coli (EHEC) O157 isolates with 184 EHEC non-O157 isolates from Korean patients with diarrhea. In the O157 group, the strains harboring both shiga toxin genes (stx1 and stx2) were detected with highest frequency, whereas the strains harboring only stx1 gene were most frequently detected in the non-O157 group. Eight virulence genes (eaeA, hlyA, ehx, iha, efa1, tir, toxB, and espA ) were found to show a higher frequency of occurrence in the O157 group than in the non-O157 group. In addition, the symptom of bloody diarrhea was found with a higher occurrence in the O157 group (51.1%) than in the non-O157 group (16.9%). Our findings demonstrate that EHEC O157 is more frequently implicated in cases of bloody diarrhea in the Korean population than EHEC non-O157 strains. PMID: 28003591 [PubMed - as supplied by publisher]
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research