Table 2.
Distribution of viruses and bacteria identified (definitive cases of bacterial CAPs are reported in parenthesis) in patients with CAP
| Bacteria | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| S. pneumoniae | H. influenzae | S. pneumoniae + H. influenzae | Gram-negative bacteriaa | MRSA | S. pyogenes | C. pneumoniae | No bacteria identified | Total | ||
| Viruses | ||||||||||
| Influenza (A and B) | 0 | 1 (0) | 1 (1) | 0 | 1 (0) | 1 (1) | 0 | 9 | 13 | |
| RV | 1 (1) | 1 (0) | 0 | 0 | 0 | 0 | 0 | 3 | 5 | |
| RSV-B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | |
| PIV (2 and 3) | 1 (1) | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | |
| CoV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | |
| AdV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | |
| RV + PIV 3 | 1 (1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| CoV + RSV-B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | |
| No viruses identified | 11 (11) | 0 | 1 (0) | 5 (0) | 1 (1) | 0 | 1 (0) | 43 | 62 | |
| Total | 14 | 2 | 2 | 5 | 2 | 1 | 1 | 64 | 91 | |
AdV, adenovirus; CoV, coronavirus; MRSA, methicillin-resistant Staphylococcus aureus; PIV, parainfluenza virus; RSV, respiratory syncytial virus; RV, rhinovirus
aGram-negative bacteria include P. aeruginosa (2 presumptive cases), E. aerogenes plus S. marcescences (1 presumptive case), K. pneumoniae (1 presumptive case), M. catharralis (1 presumptive cases); all of them were identified in sputum samples