Skip to main content

Table 4 H. influenzae , S. pneumoniae , and M. catarrhalis bacterial loads in A. otitidis -positive ear discharge swabs

From: Quantitative PCR of ear discharge from Indigenous Australian children with acute otitis media with perforation supports a role for Alloiococcus otitidis as a secondary pathogen

  A. otitidis H. influenzae S. pneumoniae M. catarrhalis
In A. otitidis-positive ED swabs (n = 11#)     
qPCR-positive swabs 11 10 3 4
Culture-positive swabs 5 4 2 1
Bacterial load range (cells/swab) 2.2 × 104-1.1 ×108 4.3 ×104-1.2 ×107 3.5 ×104-1.8 ×105 4.3 ×104-5.9 ×105
Number of swabs with bacterial load >1x106 cells/swab 5 5 0 0
Number of swabs culture-positive and bacterial load >1x106 cells/swab 4 3 0 0
Number of swabs with relative abundance <1% 6 5 3 4
Relative abundance range (%) 0.01-0.70 0.02-0.79 0.01-0.68 0.01-0.89
Number of swabs with relative abundance >1% 5 5 0 0
Relative abundance range (%) 2-34 4-27 0 0
  1. #One child with bilateral. *A. otitidis culture was only performed for qPCR-positive swabs.