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Plasmid profiles as an epidemiological marker for Salmonella enterica serotype Enteritidis foodborne outbreaks
R Luján1, A Echeita, M A Usera
1Centro Nacional de Microbiología, Virología e Inmunología Sanitarias, Instituto de Salud Carlos III, Madrid.
Microbiologia (Madrid, Spain)
|June 1, 1990
Abstract:
The incidence of enteritidis serotype of Salmonella enterica in salmonellae infections has steadily increased in Spain from 27.1% in 1982 up to 63.4% in 1987. Given this high incidence, we have studied the plasmid profiles of Enteritidis isolates to subclassify them. Different profiles were observed in 50 isolates. In 13 Enteritidis serotype outbreaks, up to 5 different plasmid profiles were found. Each outbreak correlated with a single plasmid profile except in one case where plasmids of two different profiles were observed in strains from the same outbreak.