Virulence properties and characteristics of Shiga toxin-producing Escherichia coli in Sao Paulo, Brazil, from 1976 through 1999

被引:64
作者
Vaz, TMI
Irino, K
Kato, MAMF
Dias, AMG
Gomes, TAT
Medeiros, MIC
Rocha, MMA
Guth, BEC
机构
[1] Univ Fed Sao Paulo, Escola Paulista Med, Disciplina Microbiol, BR-04023062 Sao Paulo, SP, Brazil
[2] Inst Adolfo Lutz Registro, Sao Paulo, Brazil
[3] Inst Adolfo Lutz Registro, Ribeirao Preto, Brazil
[4] Inst Adolfo Lutz Registro, Campinas, Brazil
关键词
D O I
10.1128/JCM.42.2.903-905.2004
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Twenty-nine Shiga toxin-producing Escherichia coli (STEC) strains were identified in a collection of 2,607 isolates from patients with diarrhea in S (a) over tildeo Paulo, Brazil, from 1976 to 1999. The STEC strains belonged mainly to serotypes O111:HNM (HNM, nonmotile) (13 of 29 [44.8%]), O111:H8 (7 of 29 [24%]), and O26:H11 (4 of 29 [13.8%]); stx, eae (26 of 29 [89.6%]), in combination with either enterohemorrhagic E. coli hlyA (11 of 26 [42%]) or astA (24 of 26 [92.3%]), prevailed. The 0111 STEC strains were distinguished by their inability to decarboxylate lysine. The predominance of STEC 0111 and 026 since the late 1970s and the identification of STEC serotypes 055:H19, 093:H19, and O118:H16 in association with human infections in Brazil are described for the first time.
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页码:903 / +
页数:4
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