Table 3. Microbiological diagnosis of respiratory viruses in hospital-acquired pneumonia.
| Virusa | Total no. of Patients | BAL fluid ±endotrachealaspirate | Nasopharyngealspecimen only |
| (n = 59) (%) | (n = 41) (%) | (n = 18) (%) | |
| Respiratory syncytial virus | 16 (27.1) | 9 (22.0) | 7 (38.9) |
| Type A | 11 (18.6) | 6 (14.6) | 5 (27.8) |
| Type B | 5 (8.5) | 3 (7.3) | 2 (11.1) |
| Parainfluenza virus | 16 (27.1) | 12 (29.3) | 4 (22.2) |
| Type 3 | 15 (25.4) | 11 (26.8) | 4 (22.2) |
| Type 1 | 2 (3.4) | 2 (4.9) | 0 |
| Rhinovirus | 15 (25.4) | 12 (29.3) | 3 (16.7) |
| Influenza virus | 10 (16.9) | 8 (19.5) | 2 (11.1) |
| Influenza A | 9 (15.3) | 7 (17.1) | 2 (11.1) |
| Influenza B | 1 (1.7) | 1 (2.4) | 0 |
| Cytomegalovirus | 5 (8.5) | 5 (12.2) | 0 |
| Human coronavirus | 4 (6.8) | 4 (9.8) | 0 |
| Human coronavirus OC43 | 2 (3.4) | 2 (4.9) | 0 |
| Human coronavirus 229E/NL63 | 2 (3.4) | 2 (4.9) | 0 |
| Bocavirus | 2 (3.4) | 1 (2.4) | 1 (5.6) |
| Human metapneumovirus | 2 (3.4) | 1 (2.4) | 1 (5.6) |
| Adenovirus | 1 (1.7) | 1 (2.4) | 0 |
BAL = bronchoalveolar lavage.
a
Some cases were associated with two or more pathogens; two viruses were identified in eight patients and three viruses in two patients.