The use of erythromycin as a prophylactic agent.
D004917:Erythromycin / Q000627:therapeutic use*; D006801:Humans; D013290:Streptococcal Infections / Q000517:prevention & control*; D013291:Streptococcus
D004917:Erythromycin
ERYTHROMYCIN/therapeutic use; STREPTOCOCCAL INFECTIONS/prevention and control