INCIDENCE DE Listeria spp. EN MILIEU MARIN AU MAROC

摘要

In Morocco, 986 samples of marine origin have been studied to assess the level of contamination of the coast by Listeria spp. The results show differences in the tested samples and are of 6, 4.6 and 3.4 percent respectively, for sea water, sediments and shellfish. Listeria monocytogenes and Listeria innocua are the only species identified. The colimetria hi shellfish production sites does not allow to draw a relation to the degree of contamination for Listeria spp., and this is questioning the efficacy of monitoring the sanitary state of the coast. The highest contamination is observed during whiter; the sites close to a mouth are the most threatened by contamination.