UNSPECIFIED. (2003) Febrile gastroenteritis after eating on-farm manufactured fresh cheese - an outbreak of listeriosis? EPIDEMIOLOGY AND INFECTION, 130 (1). pp. 79-86. ISSN 0950-2688

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Abstract

An outbreak of febrile gastroenteritis affected consumers of on-farm manufactured dairy products from a summer farm in Sweden. Symptoms included diarrhoea, fever, stomach cramps and vomiting in 88, 60, 54 and 21 % of cases identified. The median incubation period was 31 h. A cohort study with 33 consumers showed an attack rate of 52 % and an association between the total amount of product eaten and illness (P = 0.07). Twenty-seven of 32 (84 %) stool, samples cultured for Listeria monocytogenes tested positive, although there was no association between clinical disease and the isolation of L. monocytogenes. In addition, gene sequences for VTEC and ETEC were detected in 6 and 1 subjects, respectively. Bacteriological analysis of cheese samples revealed heavy contamination with L. monocytogenes and coagulase positive staphylococci in all of them and gene markers for VTEC in one of them. Molecular profiles for L. monocytogenes isolated from dairy products, stool samples and an abscess from 1 patient who developed septic arthritis were identical. Results of both microbiological and epidemiological analyses point to L. monocytogenes as the most likely cause of this outbreak. The finding of markers for VTEC in some humans and cheese samples means that a mixed aetiology at least in some cases cannot be conclusively ruled out.

Item Type:	Journal Article
Subjects:	R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine Q Science > QR Microbiology > QR355 Virology
Journal or Publication Title:	EPIDEMIOLOGY AND INFECTION
Publisher:	CAMBRIDGE UNIV PRESS
ISSN:	0950-2688
Date:	February 2003
Volume:	130
Number:	1
Number of Pages:	8
Page Range:	pp. 79-86
Identification Number:	10.1017/S0950268802008014
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/9805

Data sourced from Thomson Reuters' Web of Knowledge

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