Molecular epidemiological survey of Listeria monocytogenes in seafoods and seafood-processing plants.

摘要: To evaluate the role of seafoods in epidemiology human listeriosis and processing environment as a source Listeria monocytogenes seafood products, 305 L. isolates were characterized by multilocus enzyme electrophoresis using 21 genetic loci restriction analysis total DNA. Forty-four recovered from patients Norway; 93 isolated seafoods, seafood-processing environments, seawater 55 different producers; remaining 168 originated six plants one transport terminal examined detail for monocytogenes. The patient fell into 11 electrophoretic types, with four them being responsible 77% cases 1992 to 1996. Isolates Norwegian environments showed great diversity, indicating that do not offer niche specific strains. On other hand, individual genetically more homogenous, showing are likely be colonized subclones isolation identical both including ready-to-eat suggests such products may have been possible sources Norway.