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Detection of staphylococcal enterotoxigenicity. III. Strains isolated in 1979-1980
Abstract:
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.
Insights
Researchers identified 514 enterotoxigenic Staphylococcus strains from various sources, frequently producing enterotoxins A and D. Some strains produced multiple enterotoxin types, highlighting the diversity of staphylococcal enterotoxin production.
Area of Science:
- Microbiology
- Food Safety
- Clinical Diagnostics
Background:
- Staphylococcus species are significant foodborne pathogens.
- Enterotoxin production by Staphylococcus strains is a major concern for public health.
- Accurate identification of enterotoxigenic strains is crucial for risk assessment.
Purpose of the Study:
- To investigate the prevalence of enterotoxin production in Staphylococcus strains.
- To identify specific enterotoxin types produced by these strains.
- To evaluate the microprecipitation test for staphylococcal enterotoxin typing.
Main Methods:
- Analysis of 1426 Staphylococcus strains from diverse sources (food, veterinary, clinical).
- Utilized the microprecipitation test for enterotoxin identification.
- Characterized strains producing single and multiple enterotoxin types.
Main Results:
- Identified 514 enterotoxigenic strains out of 1426.
- Enterotoxins A and D were the most frequently produced types.
- 39 strains produced dual enterotoxins (e.g., AB, AD, AC, BD).
Conclusions:
- Staphylococcus strains exhibit varied enterotoxin production profiles.
- The microprecipitation test is effective for identifying multiple enterotoxin types.
- Findings contribute to understanding staphylococcal foodborne illness risks.