| AEC1 | type 1 alveolar epithelial cells |
| AEC2 | type 2 alveolar epithelial cells |
| BALT | bronchus-associated lymphoid tissue |
| C. | chlamydia |
| CAP | community acquired pneumonia |
| dpi | days after inoculation |
| FFPE | formalin-fixed paraffin embedded tissue |
| ifu | inclusion-forming units |
| IL | interleukin |