Potential sources of human listeriosis in Sweden

Altogether 68Listeria monocytogenesstrains belonging to serovar 1/2a isolated from human cases of listeriosis, salmon, rainbow trout and soft cheeses were further characterized to find out if these food products could be connected with human listeriosis in Sweden. Phagetyping and restriction endonuc...

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Bibliographic Details
Published in:Food microbiology 1998-02, Vol.15 (1), p.65-69
Main Authors: Loncarevic, S., Danielsson-Tham, M.-L., Gerner-Smidt, P., Sahlström, L., Tham, W.
Format: Article
Language:English
Subjects:
Bacterial diseases
Bacterial diseases of the digestive system and abdomen
Bacteriology
Biological and medical sciences
Culinary Arts and Meal Science
Epidemiology
Fundamental and applied biological sciences. Psychology
Human bacterial diseases
Infectious diseases
Listeria monocytogenes
Medical sciences
Microbiology
Måltidskunskap
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Summary:Altogether 68Listeria monocytogenesstrains belonging to serovar 1/2a isolated from human cases of listeriosis, salmon, rainbow trout and soft cheeses were further characterized to find out if these food products could be connected with human listeriosis in Sweden. Phagetyping and restriction endonuclease analysis (REA) with pulsed-field gel electrophoresis (PFGE) were used for characterization of the strains. Twenty-three strains belonging to phagovar 1 and five strains belonging to the closely related phagovar 24 were selected for REA and PFGE.L. monocytogenesisolates from two humans and two fish products shared the same PFGE pattern. The same was true for three human isolates and one salmon isolate. These findings suggest that there may be an association between human cases of listeriosis and consumption of salmon or rainbow trout. None of the soft cheese isolates were identical with the human strains.
ISSN:0740-0020
1095-9998
1095-9998
DOI:10.1006/fmic.1997.0145