title: A molecular study of Salmonella strains identified from two food-poisoning outbreaks.
abstract: A molecular epidemiology study was carried out on Salmonella mbandaka and Salmonella corvallis strains identified from two food-poisoning outbreaks which occurred in August 1985 in Pistoia and in October 1985 in Sant'Ilario d'Enza (RE). All the Salmonella mbandaka strains were plasmid-free; all the epidemic Salmonella corvallis strains, in contrast to the non epidemic isolates, carried a small plasmid of approximately 2 MDa molecular weight. Restriction enzyme cleavage pattern analysis revealed that the plasmids of the epidemic strains were closely related.
mesh_terms: D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000032:analysis*; D015246:Deoxyribonuclease EcoRI; D004196:Disease Outbreaks; D004587:Electrophoresis, Agar Gel; D006801:Humans; D007558:Italy; D010957:Plasmids; D012475:Salmonella / Q000145:classification / Q000235:genetics*; D012478:Salmonella Food Poisoning / Q000453:epidemiology / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial; D004262:DNA Restriction Enzymes; D015246:Deoxyribonuclease EcoRI