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[Where does BSE in the Netherlands come from?]
1Divisie WDT, Instituut voor Dierhouderij en Diergezondheid, ID-Lelystad, Postbus 65, 8200 AB, Lelystad.
Tijdschrift Voor Diergeneeskunde
|February 8, 2002
Summary
The Netherlands has experienced bovine spongiform encephalopathy (BSE) cases not clearly linked to UK imports. Risk factors include imported BSE, local origins, and cross-contamination in animal feed, particularly in the early 1990s.
Area of Science:
- Veterinary Epidemiology
- Animal Health
- Food Safety
Background:
- The Netherlands has recently identified cases of bovine spongiform encephalopathy (BSE).
- These Dutch BSE cases lack a clear link to United Kingdom imports.
- Understanding the origins and spread of BSE in the Netherlands is crucial for public and animal health.
Purpose of the Study:
- To explore potential explanations for the occurrence of BSE in the Netherlands.
- To assess various risk factors, including imported versus local origins of BSE.
- To differentiate between introductory and propagation risks associated with BSE.
Main Methods:
- Review of potential risk factors for BSE in the Dutch context.
- Analysis of research conducted at ID-Lelystad and IKC-Ede since the early 1990s.
- General assessment of risk factors, acknowledging the absence of in-depth epidemiological investigations for specific cases.
Main Results:
- Identified key risk factors including initial UK imports of cattle and meat-and-bone meal.
- Highlighted ongoing imports from countries with undetected BSE as a significant factor.
- Pointed to cross-contamination within animal feed production lines as a major propagation risk.
- Emphasized the early to mid-1990s as the critical period for BSE introduction and birth of affected calves.
Conclusions:
- BSE in the Netherlands likely resulted from a combination of imported sources and local factors.
- Continued vigilance regarding imported feed and stringent control of feed production are essential.
- Further epidemiological studies are needed to fully elucidate the dynamics of BSE in the Netherlands.
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