title: Epidemiological markers of Salmonella typhimurium isolates in Rome.
abstract: The phage type, antimicrobial resistance pattern, colicinogenic activity and DNA plasmid content of 172 strains of Salmonella typhimurium isolated in Rome from 1984 to 1986 were determined; 142 isolates were from patients with enteritis, 30 were from asymptomatic subjects. Most of the phage types identified were isolated during 2 or 3 of the study years; others, e.g., PT141, PT 204c and PT 194 were isolated during 1 year only, and only the last of these was isolated in large numbers. Phage typing proved most valuable in identifying epidemiologically related strains; DNA plasmid analysis was most useful in characterising further cultures of the same phage type, especially those isolated during suspected epidemics.
authors.affiliation: Laboratorio di Batteriologia e Micologia Medica, Instituto Superiore di Sanità, Rome, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Martini
authors.forename: E
authors.initials: E
authors.lastname: Filetici
authors.forename: M
authors.initials: M
authors.lastname: Fantasia
mesh_terms: D015373:Bacterial Typing Techniques; D001434:Bacteriophage Typing; D002648:Child; D002675:Child, Preschool; D003087:Colicins / Q000096:biosynthesis; D004269:DNA, Bacterial / Q000032:analysis*; D004352:Drug Resistance, Microbial / Q000235:genetics; D006801:Humans; D007223:Infant; D010957:Plasmids / Q000235:genetics; D012384:Rome / Q000453:epidemiology; D012478:Salmonella Food Poisoning / Q000453:epidemiology / Q000382:microbiology; D012480:Salmonella Infections / Q000453:epidemiology / Q000382:microbiology*; D012486:Salmonella typhimurium / Q000145:classification* / Q000235:genetics*
chemical_list: D003087:Colicins; D004269:DNA, Bacterial