| Stains and cultures of bronchial washings were negative for Pneumocystis, acid-fast bacilli, fungi, bacteria, and viruses. |
| Acid-fast bacilli were numerous, both intracellularly in histiocytes and extracellularly in necrotic areas. |
| The role of macrophage apoptosis in containing the growth of the bacilli is also discussed. |
| Major and limb-threatening infections may involve aerobic gram positive cocci, gram negative bacilli, anaerobes, and enterococci. |
| The elongation phase of growth distinguishes bacilli from cocci, which grow and divide by pure septation. |
| Special stains were negative for acid-fast bacilli, fungal forms, Pneumocystis, and other bacteria. |
