Micro-organisms isolated from the patients
| Cases n | Diagnostic method | |
| P. carinii along | 15 | BAL |
| P. carinii+P. aeruginosa | 1 | BAL |
| P. carinii+Actinomyces Israelii | 1 | BAL |
| P. carinii+CMV | 1 | BAL |
| P. carinii+A. fumigatus+CMV | 1 | BAL |
| P. carinii+Enterobacter aerogenes | 1 | BAL |
| P. carinii+A. baumanii | 1 | BAL |
| S. pneumoniae along | 4 | BAL+BC |
| S. pneumoniae+E. faecalis | 1 | BAL |
| S. pneumoniae+H. influenzae | 1 | BAL |
| H. influenzae+Escherichia coli | 1 | BAL |
| H. influenzae+Varicella | 1 | BAL |
| Coagulase negative staphylococci | 1 | BAL |
| P. aeruginosa+S. maltophilia | 1 | BAL |
| E. faecalis+A. fumigatus | 1 | BAL |
| E. faecalis+Candida albicans | 1 | BAL+BC (both) |
| Mycobacterium tuberculosis | 4 | Sputum |
| BAL and PSB negative | 13 | — |
| Unknown and BAL done | 7 | — |
P. carinii: Pneumocystis carinii; P. aeruginosa: Pseudomonas aeruginosa; A. fumigatus: Aspergillus fumigatus; A. baumanii: Acinetobacter baumanii; S. pneumoniae: Streptococcus pneumoniae; E. faecalis: Enterococcus faecalis; H. influenzae: Haemophilus influenzae; S. maltophilia: Stenotrophomonas maltophilia; BAL: broncoalveolar lavage. PSB: protected specimen brush. BC: blood cultures. CMV: cytomegalovirus.