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Table 2 Microbiological findings in samples from ear discharge and the nasopharynx

From: Aerobic bacteria associated with chronic suppurative otitis media in Angola

Isolates from ear discharge (N = 534)

Isolates from nasopharynx (N = 289)

Pathogen

N (%)

Pathogen

N (%)

Proteus spp.

79 (14.7)

CoNS

90 (30.7)

Pseudomonas aeruginosa

71 (13.2)

Pseudomonas spp.

47 (16.0)

Enterococcus spp.

47 (8.8)

Streptococcus pneumoniae

32 (10.9)

Providencia spp.

42 (7.8)

Staphylococcus aureus

24 (8.2)

CoNS

39 (7.3)

Proteus spp.

12 (4.1)

Corynebacterium spp.

31 (5.8)

Moraxella catarrhalis

10 (3.4)

Morganella morganii

24 (4.5)

Enterococcus spp.

10 (3.4)

Alcaligenes faecalis

19 (3.5)

Arthrobacter spp.

8 (2.7)

Citrobacter spp.

18 (3.4)

Acinetobacter spp.

6 (2.0)

Klebsiella spp.

16 (3.0)

Alcaligenes faecalis

6 (2.0)

Arthrobacter spp.

15 (2.8)

Haemophilus influenzae

5 (1.7)

Staphylococcus aureus

14 (2.6)

Corynebacterium spp.

4 (1.4)

Other Streptococcus spp.

12 (2.2)

Fungi

4 (1.4)

Fungi

12 (2.2)

Pantoea agglomerans

4 (1.4)

Kerstersia gyiorum

12 (2.2)

Streptococcus pyogenes

3 (1.0)

Escherichia coli

11 (2.0)

Enterobacter spp.

3 (1.0)

Enterobacter spp.

11 (2.0)

Other2

21 (7.2)

Pseudomonas spp.

10 (1.9)

No growth

4 (1.4)

Achromobacter spp.

7 (1.3)

  

Streptococcus pyogenes

6 (1.1)

  

Other1

38 (7.1)

  

No growth

3 (0.6)

  
  1. Pathogens representing less than 1% of isolates in each group have been pooled as “Other”. CoNS = coagulase-negative staphylococci
  2. 1 Included pathogens listed from most to least prevalent: Stenotrophomonas maltophilia, Acinetobacter spp., Gemella morbillorum, Bordetella trematum, Globicatella sulfidifaciens, Aeromonas caviae, Escherichia hermannii, Streptococcus pneumoniae, Aerococcus viridans, Arcanobacterium haemolyticum, Dermabacter hominis, Kocuria spp., Microcuccus spp., Weeksella virosa, Raoultella ornithinolytica, Serratia marcescens, Lactococcus lactis, Weisella confusa, Neisseria meningitidis
  3. 2 Included pathogens listed from most to least prevalent: Klebsiella spp., Aerococcus viridans, Lactococcus lactis, Leuconostoc spp., Macrococcus caseolyticus, Moraxella nonliquefaciens, Raoultella ornithinolytica, Streptococcus spp., Citerobacter koseri, Morganella morganii, Serratia marcescens, Dietzia maris, Lactobacillus salivarius, Shewanella putrefaciens, Stenotrophomonas maltophilia