Surveillance clinique de l'ESB en France - Etude quantitative des caractéristiques des animaux et des signes cliniques observés en cas de suspicion - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Revue de Médecine Vétérinaire Year : 2002

Clinical surveillance of BSE in France - Quantitative analysis of animal features and clinical signs

Surveillance clinique de l'ESB en France - Etude quantitative des caractéristiques des animaux et des signes cliniques observés en cas de suspicion

Abstract

A mandatory reporting system has been set up in France on December 1st 1990. It aims at detecting clinical suspicions of BSE, i.e. animals showing evocative symptoms of the disease, among cattle aged two years or more. The diagnosis is confirmed by an histopathological examination of the brain. Between December 1st 1990 and July 4th 2001, 1123 clinical suspicions were recorded within the mandatory reporting system (851 non-confirmed cases, 233 confirmed cases and 39 samples non suitable for analysis). The analysis of the questionnaires shows that the recruiting of the suspicions is wider for animals for which the BSE diagnosis is difficult to rule out: animals suspected at the slaughterhouse, dead-on-farm animals, which is consistent with the objectives and the conditions of the clinical surveillance. Besides, none of the 23 clinical signs that had to be observed, taken separately, can neither predict nor rule out BSE diagnosis. These results may contribute to improve the efficiency of the mandatory reporting system, by increasing the disease awareness towards some categories of animals, and by emphasizing the fact that the clinical signs must be taken together and that repeated obsevations are needed before ruling out BSE
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Dates and versions

hal-02671301 , version 1 (31-05-2020)

Identifiers

  • HAL Id : hal-02671301 , version 1
  • PRODINRA : 225961
  • WOS : 000181283400002

Cite

G. Cazeau, Christian Ducrot, E. Morignat, N. Lauvergne, S. Philippe, et al.. Surveillance clinique de l'ESB en France - Etude quantitative des caractéristiques des animaux et des signes cliniques observés en cas de suspicion. Revue de Médecine Vétérinaire, 2002, 153 (12), pp.785-794. ⟨hal-02671301⟩
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