Abstract:
:We have investigated 677 Shiga toxin-producing Escherichia coli (STEC) strains from humans to determine their serotypes, virulence genes, and clinical signs in patients. Six different Shiga toxin types (1, 1c, 2, 2c, 2d, and 2e) were distributed in the STEC strains. Intimin (eae) genes were present in 62.6% of the strains and subtyped into intimins alpha1, beta1, gamma1, epsilon, theta, and eta. Shiga toxin types 1c and 2d were present only in eae-negative STEC strains, and type 2 was significantly (P < 0.001) more frequent in eae-positive STEC strains. Enterohemorrhagic E. coli hemolysin was associated with 96.2% of the eae-positive strains and with 65.2% of the eae-negative strains. Clinical signs in the patients were abdominal pain (8.7%), nonbloody diarrhea (59.2%), bloody diarrhea (14.3%), and hemolytic-uremic syndrome (HUS) (3.5%), and 14.3% of the patients had no signs of gastrointestinal disease or HUS. Infections with eae-positive STEC were significantly (P < 0.001) more frequent in children under 6 years of age than in other age groups, whereas eae-negative STEC infections dominated in adults. The STEC strains were grouped into 74 O:H types by serotyping and by PCR typing of the flagellar (fliC) genes in 221 nonmotile STEC strains. Eleven serotypes (O157:[H7], O26:[H11], O103:H2, O91:[H14], O111:[H8], O145:[H28], O128:H2, O113:[H4], O146:H21, O118:H16, and O76:[H19]) accounted for 69% of all STEC strains. We identified 41 STEC strains belonging to 31 serotypes which had not previously been described as human STEC. Twenty-six of these were positive for intimins alpha1 (one serotype), beta1 (eight serotypes), epsilon (two serotypes), and eta (three serotypes). Our study indicates that different types of STEC strains predominate in infant and adult patients and that new types of STEC strains are present among human isolates.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Beutin L,Krause G,Zimmermann S,Kaulfuss S,Gleier Kdoi
10.1128/jcm.42.3.1099-1108.2004subject
Has Abstractpub_date
2004-03-01 00:00:00pages
1099-108issue
3eissn
0095-1137issn
1098-660Xjournal_volume
42pub_type
杂志文章,多中心研究abstract::Epstein-Barr virus (EBV) infection is associated with a broad spectrum of disease. While quantification of EBV nucleic acid in the peripheral blood has been demonstrated to be useful for diagnosis and patient care, the optimal sample type and reporting format for such testing remain uncertain. Using quantitative real-...
journal_title:Journal of clinical microbiology
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abstract::Human papillomavirus (HPV) is causally associated with anal cancer, as HPV DNA is detected in up to 90% of anal intraepithelial neoplasias and anal cancers. With the gradual increase of anal cancer rates, there is a growing need to establish reliable and clinically relevant methods to detect anal cancer precursors. In...
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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更新日期:1983-08-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00334-11
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journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
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更新日期:1996-07-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.11.2466-2470.1989
更新日期:1989-11-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.4.961-967.1983
更新日期:1983-10-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.11.6.748-749.1980
更新日期:1980-06-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.01418-06
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.36.8.2377-2379.1998
更新日期:1998-08-01 00:00:00
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journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.15.5.920-925.1982
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.3.336-342.1980
更新日期:1980-09-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.7.1295-1297.1987
更新日期:1987-07-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00885-12
更新日期:2012-10-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01901-18
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.22.3.422-424.1985
更新日期:1985-09-01 00:00:00