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Summary
Group G streptococci (GGS) are a common cause of erysipelas, similar to group A streptococci (GAS). GGS infections were more frequent in patients over 50, with no distinct clinical differences observed.
Area of Science:
- Infectious Diseases
- Microbiology
- Dermatology
Background:
- Erysipelas is an acute bacterial infection of the skin.
- Identifying causative pathogens is crucial for effective treatment.
Purpose of the Study:
- To bacteriologically, serologically, and clinically investigate patients with erysipelas.
- To determine the prevalence of different bacterial pathogens, including Group G streptococci (GGS) and Group A streptococci (GAS).
Main Methods:
- Prospective study of 73 patients diagnosed with erysipelas.
- Bacteriological and serological analysis to identify pathogens and immune responses.
- Clinical evaluation to assess symptoms, location, and predisposing factors.
Main Results:
- Pathogenic bacteria were isolated from 41% of patients.
- Group G streptococci (GGS) and Group A streptococci (GAS) were equally prevalent (12.5% and 15%).
- Staphylococcus aureus was identified in 10% of cases. Elevated ASO and ADNase B titres correlated with GAS, while only ASO titres rose with GGS.
Conclusions:
- Group G streptococci (GGS) are a significant cause of erysipelas, particularly in patients over 50 years old.
- While GAS and GGS share serological markers, clinical presentations were similar.
- Predisposing factors like circulatory insufficiency and malignancies were common, with lower extremities frequently affected.