Figure. . . . . . Nasopharyngeal colonization of children with Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis during routine doctor visits when healthy (triangles) and during visits for onset of acute otitis media (squares), Rochester, NY, USA, June 2006–May 2011. A) Single microbial colonization; B) polymicrobial colonization; C) overall colonization (single and polymicriobial). *p<0.05; **p<0.01, ***p<0.001, compared with healthy visits, by Fisher exact test.