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Outbreak of trichinellosis related to eating imported wild boar meat, Belgium, 2014
- Peter Messiaen1,2 , Annemie Forier3 , Steven Vanderschueren4 , Caroline Theunissen5 , Jochen Nijs6 , Marjan Van Esbroeck5 , Emmanuel Bottieau5 , Koen De Schrijver7,8 , Inge C Gyssens1,2,9 , Reinoud Cartuyvels10 , Pierre Dorny11 , Jeroen van der Hilst1,2 , Daniel Blockmans4
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View Affiliations Hide AffiliationsAffiliations: 1 Department of Infectious Diseases and Immunity, Jessa Hospital, Hasselt, Belgium 2 BIOMED Research institute, Hasselt University, Hasselt, Belgium 3 Department of Infectious Disease Control, Agency of Care and Health, Belgium 4 Department of General Internal Medicine, University Hospital Leuven, Leuven, Belgium 5 Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium 6 Department of Gastro-enterology, St Trudo Hospital, St Truiden, Belgium 7 Department of Infectious Disease Control, Agency of Care and Health, Belgium (affiliation when the work was performed) 8 Department of Epidemiology, University Antwerp, Antwerp, Belgium (current affiliation) 9 Radboud University Medical Center, Nijmegen, the Netherlands 10 Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium 11 Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, BelgiumPeter Messiaenpeter.messiaen jessazh.be
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Citation style for this article: Messiaen Peter, Forier Annemie, Vanderschueren Steven, Theunissen Caroline, Nijs Jochen, Van Esbroeck Marjan, Bottieau Emmanuel, De Schrijver Koen, Gyssens Inge C, Cartuyvels Reinoud, Dorny Pierre, van der Hilst Jeroen, Blockmans Daniel. Outbreak of trichinellosis related to eating imported wild boar meat, Belgium, 2014. Euro Surveill. 2016;21(37):pii=30341. https://doi.org/10.2807/1560-7917.ES.2016.21.37.30341 Received: 23 Sept 2015; Accepted: 04 Jan 2016
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Abstract
Trichinellosis is a rare parasitic zoonosis caused by Trichinella following ingestion of raw or undercooked meat containing Trichinella larvae. In the past five years, there has been a sharp decrease in human trichinellosis incidence rates in the European Union due to better practices in rearing domestic animals and control measures in slaughterhouses. In November 2014, a large outbreak of trichinellosis occurred in Belgium, related to the consumption of imported wild boar meat. After a swift local public health response, 16 cases were identified and diagnosed with trichinellosis. Of the 16 cases, six were female. The diagnosis was confirmed by serology or the presence of larvae in the patients’ muscle biopsies by histology and/or PCR. The ensuing investigation traced the wild boar meat back to Spain. Several batches of imported wild boar meat were recalled but tested negative. The public health investigation allowed us to identify clustered undiagnosed cases. Early warning alerts and a coordinated response remain indispensable at a European level.
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