Molecular epidemiology of Salmonella enterica poisoning: correlation of the serotype and protein profile and plasmid DNA analysis

Food-borne diseases nosocomial outbreaks due to Salmonella enterica strains have a high incidence nowadays. We describe here an outbreak that occurred in July 1990 in the Malaga University Hospital, that only involves one shift of health care workers. Salmonella enterica was detected in stool sample...

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Published inEnfermedades infecciosas y microbiología clínica Vol. 10; no. 6; p. 328
Main Authors Mariscal Larrubia, A, Clavijo Frutos, E, Carnero Varo, M, García Ruiz, R, García Rodríguez, A, Pinedo Sánchez, A, Fernández-Crehuet, J
Format Journal Article
LanguageSpanish
Published Spain 01.06.1992
Subjects
Antigens, Bacterial - analysis
Bacterial Proteins - analysis
Carrier State
Cross Infection - epidemiology
Cross Infection - microbiology
Disease Outbreaks
DNA, Bacterial - analysis
Drug Resistance, Microbial
Food Contamination
Food Microbiology
Food Service, Hospital
Humans
Incidence
Plasmids
Salmonella - classification
Salmonella - drug effects
Salmonella - immunology
Salmonella - isolation & purification
Salmonella enteritidis - drug effects
Salmonella enteritidis - immunology
Salmonella enteritidis - isolation & purification
Salmonella Food Poisoning - epidemiology
Salmonella Food Poisoning - microbiology
Salmonella Food Poisoning - transmission
Spain - epidemiology
Spain
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Summary:Food-borne diseases nosocomial outbreaks due to Salmonella enterica strains have a high incidence nowadays. We describe here an outbreak that occurred in July 1990 in the Malaga University Hospital, that only involves one shift of health care workers. Salmonella enterica was detected in stool samples from HCW and a first analysis revealed the presence of two different antibiotic susceptibility patterns (resistotypes) among isolated strains. Two months after the outbreak started, the CNVIS (Majadahonda, Spain) confirmed the presence of two different serotypes (bovismorbificans and enteritidis). The delayed availability of the results (due to the lack of specific sera needed in most of the clinical Laboratories) was responsible for finishing only a partial and restricted epidemiologic study in terms of source identification for one particular serotype as well as for the antimicrobial resistance studies. The molecular identification techniques, particularly the electrophoretic protein profile could overcome these problems.
ISSN:0213-005X