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Prevalence of Mycobacterium avium in Slaughter Pigs Based on Serological Monitoring Results and Bacteriological Validation
University of Veterinary Medicine, Bischofsholer Damm 15, Hannover 30173, Germany
Animal Science Group of Wageningen UR, P.O. Box 338, Wageningen 6700 AH, The Netherlands
VION Food Group, P.O. Box 1, Boxtel 5280 AA, The Netherlands
Central Veterinary Institute of Wageningen UR, P.O. Box 65, Lelystad 8200 AB, The Netherlands
These authors contributed equally to this work.
* Authors to whom correspondence should be addressed.
Received: 11 July 2013; in revised form: 29 July 2013 / Accepted: 19 August 2013 / Published: 30 August 2013
Abstract: Mycobacterium avium (MA) is a potential food safety hazard in pigs. Blood samples of slaughtered pigs in the Netherlands and Germany were tested for the presence of MA antibodies to estimate the serological prevalence in the tested population. In the Dutch and German population 1.0% and 1.7% samples were positive, and 0.5% and 17.4% of the herds were at risk for having a MA infection respectively. The validity of the applied MA-ELISA was evaluated under field conditions. The specificity of the MA-ELISA was high (>98.4%). The average herd sensitivity was 18%. In the affected herds on average 50% of the animals were tested bacteriological positive for MA. It can be concluded that serological screening for the presence of MA antibodies is capable of identifying pig populations that are at risk for a MA infection.
Keywords: Mycobacterium avium; pig; serology; ELISA; supply chain meat inspection
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Hiller, A.; Oorburg, D.; Wisselink, H.J.; Solt-Smits, C.B.; Urlings, B.; Klein, G.; Althoff, G.S.; Heres, L. Prevalence of Mycobacterium avium in Slaughter Pigs Based on Serological Monitoring Results and Bacteriological Validation. Int. J. Environ. Res. Public Health 2013, 10, 4027-4038.
Hiller A, Oorburg D, Wisselink HJ, Solt-Smits CB, Urlings B, Klein G, Althoff GS, Heres L. Prevalence of Mycobacterium avium in Slaughter Pigs Based on Serological Monitoring Results and Bacteriological Validation. International Journal of Environmental Research and Public Health. 2013; 10(9):4027-4038.
Hiller, Anne; Oorburg, Derk; Wisselink, Henk J.; Solt-Smits, Conny B.; Urlings, Bert; Klein, Günter; Althoff, Gereon S.; Heres, Lourens. 2013. "Prevalence of Mycobacterium avium in Slaughter Pigs Based on Serological Monitoring Results and Bacteriological Validation." Int. J. Environ. Res. Public Health 10, no. 9: 4027-4038.