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Multiple‐Aetiology Enteric Infections Involving Non‐O157 Shiga Toxin‐Producing Escherichia coli – FoodNet, 2001–2010
Author(s) -
LunaGierke R. E.,
Wymore K.,
Sadlowski J.,
Clogher P.,
Gierke R. W.,
TobinD'Angelo M.,
Palmer A.,
Medus C.,
Nicholson C.,
McGuire S.,
Martin H.,
Garman K.,
Griffin P. M.,
Mody R. K.
Publication year - 2014
Publication title -
zoonoses and public health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.87
H-Index - 65
eISSN - 1863-2378
pISSN - 1863-1959
DOI - 10.1111/zph.12098
Subject(s) - outbreak , etiology , population , isolation (microbiology) , escherichia coli , microbiology and biotechnology , medicine , biology , virology , environmental health , biochemistry , gene
Summary We describe multiple‐aetiology infections involving non‐O157 S higa toxin‐producing E scherichia coli ( STEC ) identified through laboratory‐based surveillance in nine F ood N et sites from 2001 to 2010. A multiple‐aetiology infection ( MEI ) was defined as isolation of non‐O157 STEC and laboratory evidence of any of the other nine pathogens under surveillance or isolation of >1 non‐O157 STEC serogroup from the same person within a 7‐day period. We compared exposures of patients with MEI during 2001–2010 with those of patients with single‐aetiology non‐O157 STEC infections ( SEI ) during 2008–2009 and with those of the F ood N et population from a survey conducted during 2006–2007. In total, 1870 non‐O157 STEC infections were reported; 68 (3.6%) were MEI ; 60 included pathogens other than non‐O157 STEC ; and eight involved >1 serogroup of non‐O157 STEC . Of the 68 MEI , 21 (31%) were part of six outbreaks. STEC O111 was isolated in 44% of all MEI . Of patients with MEI , 50% had contact with farm animals compared with 29% ( P < 0.01) of persons with SEI ; this difference was driven by infections involving STEC O111. More patients with non‐outbreak‐associated MEI reported drinking well water (62%) than respondents in a population survey (19%) ( P < 0.01). Drinking well water and having contact with animals may be important exposures for MEI , especially those involving STEC O111.