Source of microbiological diagnosis in the prospective study of cases of community acquired pneumonia admitted to hospital
| n | Blood culture | Serology | Nasopharyngeal aspirate | Polymerase chain reaction (blood) | Polymerase chain reaction (nasopharyngeal aspirate) | |
| Streptococcus pneumoniae | 7 | 2 | 7 | |||
| Mycoplasma | 14 | 9 | 6 | 2 | ||
| Pertussis | 6 | 6 | ||||
| Chlamydia pneumoniae | 1 | 1 | 1 | 1 | ||
| Viruses | 23 | 11 | 14 |