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Abstract

In March 2014, a (YP) outbreak was detected by a municipal authority in southern Finland. We conducted epidemiological, microbiological and traceback investigations to identify the source. We defined a case as a person with YP infection notified to the National Infectious Disease Registry between February and April 2014, or their household member, with abdominal pain and fever ≥ 38 °C or erythema nodosum. Healthy household members were used as household-matched controls. We identified 43 cases and 50 controls. The illness was strongly associated with the consumption of raw milk from a single producer. The odds ratio of illness increased with the amount of raw milk consumed. Also previously healthy adults became infected by consuming raw milk. Identical YP strains were identified from cases’ stool samples, raw milk sampled from a case’s refrigerator and from the milk filter at the producer’s farm. The producer fulfilled the legal requirements for raw milk production and voluntarily recalled the raw milk and stopped its production. We advised consumers to heat the raw milk to 72 °C for 15 s. Current legislation for raw milk producers should be reviewed and public awareness of health risks linked to raw milk consumption should be increased.

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/content/10.2807/1560-7917.ES.2015.20.40.30033
2015-10-08
2024-11-14
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2015.20.40.30033
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Outbreak of Yersinia pseudotuberculosis O:1 infection associated with raw milk consumption, Finland, spring 2014
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <a href="/search?value1=Triin+P%C3%A4rn&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Pärn Triin</a>, <a href="/search?value1=Saija+Hallanvuo&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Hallanvuo Saija</a>, <a href="/search?value1=Saara+Salmenlinna&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Salmenlinna Saara</a>, <a href="/search?value1=Annika+Pihlajasaari&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Pihlajasaari Annika</a>, <a href="/search?value1=Seija+Heikkinen&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Heikkinen Seija</a>, <a href="/search?value1=Hanna+Telkki-Nyk%C3%A4nen&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Telkki-Nykänen Hanna</a>, <a href="/search?value1=Marjaana+Hakkinen&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Hakkinen Marjaana</a>, <a href="/search?value1=Jukka+Ollgren&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Ollgren Jukka</a>, <a href="/search?value1=Sari+Huusko&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Huusko Sari</a>, <a href="/search?value1=Ruska+Rimhanen-Finne&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Rimhanen-Finne Ruska</a></span>. Outbreak of Yersinia pseudotuberculosis O:1 infection associated with raw milk consumption, Finland, spring 2014. <a href="/content/ecdc">Euro Surveill.</a> 2015;20(40):pii=30033. <a href="https://doi.org/10.2807/1560-7917.ES.2015.20.40.30033" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2015.20.40.30033</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 31 Dec 2014;&nbsp;&nbsp; <span class="generated">Accepted</span>: 04 Jun 2015 </span> </p>
/content/10.2807/1560-7917.ES.2015.20.40.30033
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