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Case-control study to identify risk factors for bovine cysticercosis on farms in Switzerland

Published online by Cambridge University Press:  27 March 2008

F. FLÜTSCH ,
D. HEINZMANN ,
A. MATHIS ,
H. HERTZBERG ,
R. STEPHAN  and
P. DEPLAZES
F. FLÜTSCH
Affiliation:
Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland
D. HEINZMANN
Affiliation:
Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland
A. MATHIS
Affiliation:
Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland
H. HERTZBERG
Affiliation:
Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland
R. STEPHAN
Affiliation:
Institute for Food Safety and Hygiene, University of Zürich, Winterthurerstrasse 272, CH-8057 Zürich, Switzerland
P. DEPLAZES*
Affiliation:
Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland
*
*Corresponding author: Institute of Parasitology, University of Zürich, Winterthurerstrasse 266a, CH-8057 Zürich, Switzerland. Tel: +41 446358501. Fax: +41 446358907. E-mail: [email protected]
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Summary

Taenia saginata cysticercosis causes financial losses to the beef industry and farmers, and represents a significant source for human infection in many countries. A case-control study was conducted to identify risk factors for bovine cysticercosis on farms in Switzerland. The case group (n=119) consisted of farms with infected cattle identified at slaughter in 2005 and 2006. Infections were confirmed by morphological or molecular diagnosis. The control group (n=66) comprised randomly selected farms with cattle slaughtered in the same period but with no evidence or history of infection. In personal structured interviews with the farmers, information regarding local surroundings and farm management was collected. Logistic regression revealed the following 5 factors as being positively associated with the occurrence of bovine cysticercosis: the presence of a railway line or a car park close to areas grazed by cattle, leisure activities around these areas, use of purchased roughage and organized public activities on farms attracting visitors. This information is considered useful for government authorities to direct control strategies as well as for farmers to take measures tailored to local situations.

Keywords

Taenia saginatabovine cysticercosisrisk factorsepidemiologyfood-borne zoonosis
Type
Original Articles
Information
Parasitology , Volume 135 , Issue 5 , May 2008 , pp. 641 - 646
Copyright
Copyright © Cambridge University Press 2008

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