
Keywords: OMPC; AOM; acute otitis media; CI; confidence interval; CRM; cross-reacting material 197; DT; diphtheria toxoid; DTaP; diphtheria, tetanus, acellular pertussis; DTwP; diphtheria, tetanus, whole-cell pertussis; dPly; detoxified pneumolysin; EPA; exotoxin A of Ps