Detection of staphylococcal enterotoxigenicity. III. Strains isolated in 1979-1980.

During 1979-1980, the enterotoxin production was studied in 1426 strains of staphylococci isolated from food, veterinary and clinical material, and from some other sources. Using the microprecipitation test, the authors identified 514 enterotoxigenic strains that produced most frequently enterotoxins A and D, but also the types C, B and E of enterotoxins; 39 strains were found to produce two types of enterotoxin, specifically in AB, AD, AC and BD combinations. Some conditions of the microprecipitation test used in this study for the typing of staphylococcal enterotoxigenicity are also discussed.