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- Ellström, Patrik, et al.
(författare)
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A Prospective Follow-Up Study on Transmission of Campylobacter from Poultry to Abattoir Workers
- 2014
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Ingår i: Foodborne Pathogens and Disease. - : Mary Ann Liebert Inc. - 1535-3141 .- 1556-7125. ; 11:9, s. 684-688
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Tidskriftsartikel (refereegranskat)abstract
- Contact with poultry or poultry meat is a well-known risk factor for campylobacteriosis, but prospective studies on transmission of Campylobacter from chickens to humans during slaughter are scarce. In this study, we monitored transmission of Campylobacter from slaughtered chicken to originally culture-negative abattoir workers during the peak season of colonized chicken and human Campylobacter infection. Stool samples were obtained from 28 abattoir workers together with data on health status once a month between June and September 2010, with a follow-up sample collected in February 2011. Campylobacter-positive individuals and chicken flocks were identified by culture, and isolates were further characterized using molecular techniques. Campylobacter was isolated from seven asymptomatic individuals. Four of them had been newly employed and had not reported any previous Campylobacter infection. Four human isolates had matching genetic fingerprints with isolates from recently slaughtered chickens. Our results further support the role of chicken as the source of human Campylobacter infection but suggest that asymptomatic Campylobacter infection may occur even in individuals with only limited earlier exposure to Campylobacter.
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- Tham, Wilhem, 1951-, et al.
(författare)
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Occurrence of Genetic Variants of Listeria monocytogenes Strains
- 2013
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Ingår i: Foodborne pathogens and disease. - : Mary Ann Liebert. - 1535-3141 .- 1556-7125. ; 10:9, s. 825-826
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Tidskriftsartikel (refereegranskat)abstract
- Isolates of Listeria monocytogenes saved from outbreaks of listeriosis, cases of sporadic listeriosis, and similar events do not always belong to a solitary genetic variant. Variants of the same strain may have evolved from a unique clone, and plasmid loss or gain and phage-mediated genetic changes are suggested as the main mechanism. Some of these reports are summarized in this short communication.
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