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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.