- Patients with evidence of acute group A beta-hemolytic streptococcus (GABHS)
pharyngitis/tonsillitis and a positive rapid antigen detection test or positive
culture of the pharynx or tonsils for GABHS
- Patients were excluded if they had treatment with any systemic antibiotic within the
previous 7 days, a history of rheumatic fever, a peritonsillar abcess, or were known
carriers of GABHS.