TABLE 1

Microbial findings in 267 hospitalised patients with community-acquired pneumonia

Bacterial pathogensPatients with positive findingsViral pathogensPatients with positive findings
Streptococcus pneumoniae81 (30%)Influenza viruses§40 (15%)
Bordetella pertussis15 (6%)Rhinovirus32 (12%)
Haemophilus influenzae14 (5%)Parainfluenza virusesƒ8 (3%)
Mycoplasma pneumoniae10 (4%)Respiratory syncytial virus7 (3%)
Chlamydophila pneumoniae7 (3%)Metapneumovirus7 (3%)
Legionella pneumophila7 (3%)Enterovirus5 (2%)
Enterobacteriaceae#6 (2%)Adenovirus1 (0.4%)
Moraxella catarrhalis5 (2%)
Miscellaneous3 (1%)
Haemophilus parainfluenzae2 (1%)
Total+126 (47%)Total+92 (34%)

#: Escherichia coli, Pseudomonas aeruginosa or Enterobacter spp.; : group A Streptococcus, Prevotella spp. or Dialister pneumosintes; +: number of patients does not sum to number of pathogens because some patients had multiple pathogens detected; §: influenza A and B viruses; ƒ: parainfluenza virus types 1–3.