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A total of 32 strains of Yersinia enterocolitica and Y. enterocolitica-like microbes were examined for their ability to produce E. coli ST-like enterotoxin when grown at 22 degrees C and 37 degrees C, using the infant mouse assay. Enterotoxin production was indicated for 19 (59%) of the 32 strains examined. Nine of ten sucrose non-fermenting strains belonging to O-serogroup 28 produced enterotoxin at both 22 degrees C and at 37 degrees C. Eight of these strains were obtained from the intestinal contents of apparently healthy small mammals or from water samples at three different localities in Norway. One O-serogroup 28 culture was a reference strain received from Institut Pasteur, Paris. With the exception of O-serogroup 28, enterotoxins were detected only after incubation at 22 degrees C. The infant mouse assay was positive for all the four clinical isolates belonging to O-serogroup 3/biotype 4. Six of 13 different reference strains were positive in this assay.
G Kapperud, and
B P Berdal, and
T Omland
June 1982,
Acta pathologica, microbiologica, et immunologica Scandinavica. Section B, Microbiology,
G Kapperud, and
B P Berdal, and
T Omland
January 1985,
Acta veterinaria Scandinavica,
G Kapperud, and
B P Berdal, and
T Omland
October 1980,
Acta pathologica et microbiologica Scandinavica. Section B, Microbiology,
G Kapperud, and
B P Berdal, and
T Omland
May 1982,
Applied and environmental microbiology,
G Kapperud, and
B P Berdal, and
T Omland
March 1978,
Infection and immunity,
G Kapperud, and
B P Berdal, and
T Omland
January 1969,
Acta pathologica et microbiologica Scandinavica,
G Kapperud, and
B P Berdal, and
T Omland
January 1986,
Microbios,
G Kapperud, and
B P Berdal, and
T Omland
February 1999,
Infection and immunity,
G Kapperud, and
B P Berdal, and
T Omland
January 1987,
Annales de l'Institut Pasteur. Microbiology,
G Kapperud, and
B P Berdal, and
T Omland
April 1992,
Applied and environmental microbiology,
