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Table 6 Pathogens isolated from new tympanic membrane perforations

From: Pneumococcal vaccination and otitis media in Australian Aboriginal infants: comparison of two birth cohorts before and after introduction of vaccination

Perforation pathogen category Vaccinated
N = 97 (194 ears)
Comparison
N = 51 (102 ears)
New perforations 73 (38% of ears) 72 (71% of ears)
New perforation discharge specimen collected 59/73 (81% new perforations) 44/72 (61% new perforations)
Positive discharge specimens* 32/59 (54% specimens) 25/44 (57% specimens)
S. pneumoniae 19/32 (59% positive specimens) 16/25 (64% positive specimens)
   All vaccine-types 7 (22%) 8 (32%)
   Serotype 6B 2 (3%) 5 (20%)
   All vaccine-related types 6 (19%) 2 (8%)
   Serotype 19A 4 (13%) 2 (8%)
   All non-vaccine types 9 (28%) 6 (24%)
   Serotype 16F 4 (13%) 2 (8%)
H. influenzae 28 (88%) 21 (84%)
M. catarrhalis 0 (0%) 2 (8%)
S. pneumoniae & H. influenzae 15 (47%) 12 (48%)
  1. * Isolation of S. pneumoniae, H. influenzae or M. catarrhalis.
  2. Cases of co-infections of H. influenzae and S. pneumoniae have also been included in the numbers for individual pathogens.
  3. Other serotypes isolated: vaccinated group 19F (3), 6A (2), 7C (2), 23F, 3, 7F, 1 & 19F co-isolated. comparison group 23F (2), 11A (2), 9V, 7F, 13.