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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