primary prevention techniques , consisting of the detection and antibiotic treatment of streptococcal infections of the pharynx , are both feasible and effective , but are also costly , as only 10-20 % of all pharyngeal infections are due to the beta-hemolytic streptococcus , and only a small proportion of those actually develop into rheumatic heart disease .
C0031354
pharynx
C0031350
pharyngeal infections