Severe Outbreak of Sorbitol-Fermenting Escherichia coli O157 via Unpasteurized Milk and Farm Visits, Finland 2012

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http://hdl.handle.net/10138/232166
Julkaisun nimi: Severe Outbreak of Sorbitol-Fermenting Escherichia coli O157 via Unpasteurized Milk and Farm Visits, Finland 2012
Tekijä: Jaakkonen, A.; Salmenlinna, S.; Rimhanen-Finne, R.; Lundström, H.; Heinikainen, S.; Hakkinen, M.; Hallanvuo, S.
Tiivistelmä: Shiga toxin-producing, sorbitol-fermenting Escherichia coli O157 (SF O157) has emerged as a cause of severe human illness. Despite frequent human findings, its transmission routes and reservoirs remain largely unknown. Foodborne transmission and reservoir in cattle have been suspected, but with limited supporting evidence. This study describes the outbreak of SF O157 that occurred in Finland in 2012. The outbreak originated from a recreational farm selling unpasteurized milk, as revealed by epidemiologic and microbiological investigations, and involved six hospitalized children and two asymptomatic adults with culture-confirmed infection. An identical strain of SF O157 was isolated from patients, cattle and the farm environment, and epidemiologic analysis suggested unpasteurized milk as the vehicle of transmission. This study reports the first milkborne outbreak of SF O157, provides supporting evidence of cattle as a reservoir and highlights the health risks related to the consumption of unpasteurized milk.
URI: http://hdl.handle.net/10138/232166
Päiväys: 2017
Avainsanat: Shiga toxin-producing Escherichia coli
O157
sorbitol-fermenting
outbreak
cattle
milk


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