Comparing the demonstration of freedom from Trichinella infection of domestic pigs by traditional and risk-based surveillance

Schuppers, M. E.; Frey, Caroline; Gottstein, Bruno; Stärk, K. D. C.; Kihm, U.; Regula, Gertraud (2010). Comparing the demonstration of freedom from Trichinella infection of domestic pigs by traditional and risk-based surveillance. Epidemiology and infection, 138(09), pp. 1242-1251. Cambridge: Cambridge University Press 10.1017/S0950268809991518

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Traditionally, the routine artificial digestion test is applied to assess the presence of Trichinella larvae in pigs. However, this diagnostic method has a low sensitivity compared to serological tests. The results from artificial digestion tests in Switzerland were evaluated over a time period of 15 years to determine by when freedom from infection based on these data could be confirmed. Freedom was defined as a 95% probability that the prevalence of infection was below 0.0001%. Freedom was demonstrated after 12 years at the latest. A new risk-based surveillance approach was then developed based on serology. Risk-based surveillance was also assessed over 15 years, starting in 2010. It was shown that by using this design, the sample size could be reduced by at least a factor of 4 when compared with the traditional testing regimen, without lowering the level of confidence in the Trichinella-free status of the pig population.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Parasitology
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Public Health Institute
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > DVK - Clinical Research (discontinued)
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Experimental Clinical Research

UniBE Contributor:

Frey, Caroline; Gottstein, Bruno; Stärk, Katharina; Kihm, Ulrich and Schüpbach, Gertraud

Subjects:

600 Technology > 630 Agriculture

ISSN:

0950-2688

Publisher:

Cambridge University Press

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:36

Last Modified:

27 Apr 2018 08:40

Publisher DOI:

10.1017/S0950268809991518

PubMed ID:

20067658

Web of Science ID:

000281275300004

BORIS DOI:

10.7892/boris.14300

URI:

https://boris.unibe.ch/id/eprint/14300 (FactScience: 221195)

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