Table 2

Non-viral pathogens detected among 610 patients with community-acquired pneumonia

Pathogen

Patients, n (%)


Mono-infection

Mycoplasma pneumoniae

82 (13.4)

Streptococcus pneumoniae

37 (6.07)

Haemophilus influenzae

33 (5.4)

Chlamydophila pneumoniae

29 (4.8)

Klebsiella pneumoniae

23 (3.8)

Staphylococcus aureus

17 (2.8)

Legionella pneumophila

17 (2.8)

Escherichia coli

6 (1.0)

Pseudomonas aeruginosa

5 (0.8)

Moraxella catarrhalis

5 (0.8)

Mixed infections

70 (11.5)

Two pathogens

64 (10.5)

Three pathogens

5 (0.8)

Four pathogens:

1 (0.2)

Total number of patients with identified pathogens

324 (53.1)


Note: Percentage of the most three common agents in which pathogens were identified was 38.9% for M. pneumoniae, 19.4% for S. pneumoniae, and 17.3% for H. influenzae.

Liu et al. BMC Infectious Diseases 2009 9:31   doi:10.1186/1471-2334-9-31

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