Document Detail


Prevalence of shiga toxin-producing Escherichia coli in dairy cattle and their products.
MedLine Citation:
PMID:  15653509     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The main objective of this review was to assess the role of dairy cattle and their products in human infections with Shiga toxin-producing Escherichia coli (STEC). A large number of STEC strains (e.g., members of the serogroups O26, O91, O103, O111, O118, O145, and O166) have caused major outbreaks and sporadic cases of human illnesses that have ranged from mild diarrhea to the life-threatening hemolytic uremic syndrome. These illnesses were traced to O157 and non-O157 STEC. In most cases, STEC infection was attributed to consumption of ground beef or dairy products that were contaminated with cattle feces. Thus, dairy cattle are considered reservoirs of STEC and can impose a significant health risk to humans. The global nature of food supply suggests that safety concerns with beef and dairy foods will continue and the challenges facing the dairy industry will increase at the production and processing levels. In this review, published reports on STEC in dairy cattle and their products were evaluated to achieve the following specific objectives: 1) to assemble a database on human infections with STEC from dairy cattle, 2) to assess prevalence of STEC in dairy cattle, and 3) to determine the health risks associated with STEC strains from dairy cattle. The latter objective is critically important, as many dairy STEC isolates are known to be of high virulence. Fecal testing of dairy cattle worldwide showed wide ranges of prevalence rates for O157 (0.2 to 48.8%) and non-O157 STEC (0.4 to 74.0%). Of the 193 STEC serotypes of dairy cattle origin, 24 have been isolated from patients with hemolytic uremic syndrome. Such risks emphasize the importance and the need to develop long-term strategies to assure safety of foods from dairy cattle.
Authors:
H S Hussein; T Sakuma
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Review    
Journal Detail:
Title:  Journal of dairy science     Volume:  88     ISSN:  0022-0302     ISO Abbreviation:  J. Dairy Sci.     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-01-17     Completed Date:  2005-03-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985126R     Medline TA:  J Dairy Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  450-65     Citation Subset:  IM    
Affiliation:
Department of Animal Biotechnology, University of Nevada-Reno, Reno 89557, USA. hhussein@cabnr.unr.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Cattle / microbiology*
Dairy Products / microbiology
Disease Reservoirs
Escherichia coli / classification,  isolation & purification*,  metabolism
Escherichia coli Infections / epidemiology,  transmission
Escherichia coli O157 / isolation & purification,  metabolism,  pathogenicity
Feces / microbiology
Female
Food Microbiology
Humans
Meat / microbiology
Milk / microbiology
Serotyping
Shiga Toxin / biosynthesis*
Chemical
Reg. No./Substance:
75757-64-1/Shiga Toxin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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