نتایج جستجو برای: serotype o111
تعداد نتایج: 19081 فیلتر نتایج به سال:
The ‘‘top-six’’ non-O157 Shiga toxin–producing Escherichia coli (STEC) serogroups (O26, O45, O103, O111, O121, and O145) most frequently associated with outbreaks and cases of foodborne illnesses have been declared as adulterants in beef by the U.S. Department of Agriculture Food Safety and Inspection Service (FSIS). Regulatory testing in beef began in June 2012. The purpose of this study was t...
The incidence of the non-O157 enterohemorrhagic Escherichia coli (EHEC) nonO157:H7 Shiga toxin-producing E. coli (STEC) infections increased in the last years. Many serotypes of this toxigenic E.coli group were isolated from hemolytic uremic syndrome (HUS) and hemorrhagic colitis (HC) cases. The STEC strains possess many virulence factors codified by plasmids. Among the over 200 non-O157 STEC s...
O111 Figure 1. Abstracts of the HIV Drug Therapy in the Americas Journal of the International AIDS Society 2014, 17 (Suppl 1) http://www.jiasociety.org/index.php/jias/article/view/19180
Accurate Escherichia coli serotyping is critical for pathogen diagnosis and surveillance of non-O157 Shiga-toxigenic strains, however few laboratories have this capacity. The molecular serotyping protocol described in this paper targets the somatic and flagellar antigens of E. coli O111:H8 used in traditional serotyping, and can be performed routinely in the laboratory.
conclusions the b3, b5, b7, b8 and b9 subgenotypes can be clustered into quasi-sub-genotype b3 and the open reading frame of hbv has a start codon preference; however, whether a mutation in the start codon in the pre-s2 region has an impact on survival and replication of hbv remains to be determined. background the number of cases of hbv infection reported by the who for each district and count...
background leptospirosis is a widespread zoonosis in the world with more prevalence in tropical and subtropical regions. the disease is very common in flat area of gilan, northern iran, where the climate is humid and temperate and rice farming is main agricultural activity in rural areas. patients and methods we performed this study in 2004 by taking blood samples from 465 hospitalized patients...
The ultrastructure of the purified and lyophilized endotoxin from Escherichia coli O111 was observed by ultrathin sectioning. Onion-like globular membrane structures were observed in addition to rod-like and ribbon-like structures, indicating the existence of a globular membrane structure even in the dried state.
background: the purpose of this study was to find out the frequency of different serotypes of enteropathogenic escherichia coli (epec) among healthy/diarrheal cases. methods: a total of 191 strains, 111 from diarrheal and 80 from asymptomatic persons were examined. determination of the epec serogroups was performed by agglutination tests using polyvalent and monovalent o antiserum. pcr-rflp a...
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