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Volume 7, Number 6—December 2001


Effect of Prevention Measures on Incidence of Human Listeriosis, France, 1987-1997

Véronique Goulet*Comments to Author , Henriette de Valk*, Olivier Pierre†, Frédéric Stainer‡, Jocelyne Rocourt§, Véronique Vaillant*, Christine Jacquet§, and Jean-Claude Desenclos*
Author affiliations: *Institut de Veille Sanitaire, Saint-Maurice, France;; †Direction Générale de la Concurrence, Bureau Hygiène, Paris, France;; ‡Direction Générale de l'Alimentation, Bureau des Préventions des Contaminations, Paris, France;; §Institut Pasteur, Paris, France

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Table 3

Proportion of ready-to-eat foods contaminated with Listeria monocytogenes (Lm), by food category, France, 1993-1996

Ready-to-eat meat products Dairy products Prepared salads Seafood-fish products
Number of samples 3,283 3,541 3,166 1,966
% of food contaminated by Lm
<100 CFU/ga 9.7 2.9 4.2 9.7
>100 CFU/g 1.1 1.8 0.3 0.5
Total 10.8 4.7 4.5 10.4

aLevels of contamination <100 CFU/g but greater than zero.

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