The present report describes a limited outbreak of infections due to a Group A beta-hemolytic streptococcus that was highly resistant to both erythromycin and lincomycin and moderately resistant ...

Rheumatic heart disease is a chronic condition that results years after acute rheumatic fever, which is caused by group A beta-hemolytic Streptococcus pyogenes. This organism produces a ...

Conclusions: Perineal streptococcal dermatitis initially treated with penicillin or amoxicillin is consistently associated with a high risk of clinical recurrence. Whether treatment with a beta ...

Streptococci, virulent for animals, but which differ from typical streptococcus pyogenes in a more abundant growth, in being encapsulated and not forming chains, and in causing but little hemolysis, ...

This rate is higher than observed in children treated with a beta-lactamase resistant agent, although the associated risk estimate reached statistical significance (pooled OR: 2.39 [95% CI ...