Microbiological data for patients with acute exacerbation of idiopathic pulmonary fibrosis before mechanical ventilation
| Patients examined | Positive results | |
| Sputum bacterial culture | 18 | 4# (22) |
| Sputum viral culture or PCR | 17 | 1 (6) |
Data are presented as n or n (%). #: all four patients with positive bacterial cultures died before being transplanted.