[Recent data on the spread of Listeria spp. in the province of Ferrara].

Abstract

The results of the investigations of Listeria held from 1985 to 1989 in samples of foods, surface waters and stools are reported. On the whole 98 strains of Listeria were isolated, 38 of which were L. monocytogenes. The first isolation of L. grayi from human stools is pointed out.