When co-colonizing the nasopharynx haemophilus influenzae predominates over Streptococcus pneumoniae except serotype 19A strains to cause acute otitis media.

Journal: The Pediatric Infectious Disease Journal
Published:
Abstract

Of 368 acute otitis media (AOM) cases among 7-valent pneumococcal conjugate-vaccinated children, 43.5% were colonized by multiple otopathogens in the nasopharynx but only 7.1% experienced polymicrobial AOM. When co-colonization occurred, Haemophilus influenzae predominated over all Streptococcus pneumoniae strains except 19A strains to cause AOM. Haemophilus influenzae and Streptococcus pneumoniae both predominated over Moraxella catarrhalis to cause AOM.

Relevant Conditions

Strep Throat, Otitis