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Table 3 Distribution of pathogens identified in 267 patients with documented community-acquired pneumonia

From: Are third-generation cephalosporins unavoidable for empirical therapy of community-acquired pneumonia in adult patients who require ICU admission? A retrospective study

Microbiological strains n (%)
Streptococcus pneumonia 115 (43.1)
Haemophilus influenza 47 (17.6)
Moraxella catarrhalis 4 (1.5)
Legionella pneumophila 7 (2.6)
Mycoplasma pneumoniae 1 (0.3)
Enterobacteriaceae  
 Escherichia coli 22 (8.2)
 Klebsiella pneumoniae 15 (5.6)
 Klebsiella oxytoca 3 (1.1)
 Serratia marcescens 4 (1.5)
 Enterobacter cloacae 4 (1.5)
 Morganella morganii 3 (1.1)
 Proteus mirabilis 2 (0.7)
 Hafnia alvei 1 (0.3)
 Enterobacter aerogenes 1 (0.3)
Non-fermenting Gram-negative bacteria
 Pseudomonas aeruginosa 22 (8.2)
 Stenotrophomonas maltophilia 2 (0.7)
 Acinetobacter baumannii 1 (0.3)
Methi-S Staphylococcus aureus 18 (5.7)
Methi-R Staphyloccocus aureus 3 (1.1)
Corynebacterium 3 (1.1)
Fusobacterium other 1 (0.3)
Neisseiria sp. other 1 (0.3)
Streptococcus anginosus other 1 (0.3)
Streptococcus milleri other 2 (0.3)
Pneumocystis jirovecii 11 (4.1)
Viruses  
 H1N1 influenzae 4 (1.5)
 Adenovirus 1 (0.3)
Mycobacterium tuberculosis 1 (0.3)
  1. The total count of pathogens exceeds the total number of documented pneumonia since 33 pneumonias were caused by two pathogens