The primary objective was to compare the bacteriological efficacy at Day 10 of azithromycin pediatric suspension (20 mg/kg/day once daily for 3 consecutive days) versus amoxicillin pediatric suspension (50 mg/kg/day in 2 doses for 6 consecutive days) in children aged 3-15 years with Group A streptococcal acute pharyngitis/tonsillitis. Secondary objectives were assessments of bacteriological efficacy at Day 30 and clinical efficacy at Day 10 and Day 30.

Inclusion Criteria:

Outpatients with an acute pharyngitis erythematous or erythematopultaceous with modification of pharynx aspect and fever of ≥38° C, and patients either with or without spontaneous pharyngeal pain or upon swallowing and enlargement of the cervical lymph node (mandibular area) were eligible for inclusion. All subjects should have had a positive rapid strep test and a positive culture for Group A beta-hemolytic streptococcus.

Exclusion Criteria:

Patients with pseudomembranous, vesicular, ulcerous or ulceronecrotic pharyngitis were excluded.