Table 3.
Microbiologic features
| Atypical SCAP n = 26 |
Other SCAP n = 1028 |
|
|---|---|---|
| Bacteria | 26 (100) | 555 (54) |
| Streptococcus pneumoniae | 210 (20) | |
| Staphylococcus aureus | 76 (7) | |
| Haemophilus influenza | 68 (7) | |
| Enterobacteriaceae | 55 (5) | |
| Nonfermentive gram-negative bacteria | 36 (4) | |
| Legionella pneumophila serogroup 1 | 18 (69) | |
| Other Legionella spp | 0 | |
| Mycoplasma pneumoniae | 3 (12) | |
| Chlamydophila pneumoniae | 0 | |
| Chlamydia psittaci | 5 (19) | |
| Others | 110 (11) | |
| Viruses | 379 (37) | |
| SARS-CoV-2 | 169 (16) | |
| Influenza | 161 (16) | |
| Others | 49 (5) | |
| Fungi and parasites | 94 (9) | |
| Pneumocystis jirovecii | 70 (7) | |
| Aspergillus spp | 22 (2) | |
| Others | 2 (0) | |
| Co-infections | 0 | 201 (24) |
Data are presented as number (%). Abbreviations: SCAP: severe community-acquired pneumonia