| Bacterial |
| Tuberculosis |
| MAC |
| Brucellosis |
| Lepromatous leprosy |
| BCG infection |
| Listeriosis |
| Melioidosis |
| Tularemia |
| Yersiniosis |
| Psittacosis |
| Whipple disease |
| Cat scratch disease |
| Viral |
| CMV |
| EBV |
| Hepatitis A, B and C |
| Fungal |
| Histoplasmosis |
| Coccidioidomycosis |
| Cryptococcus |
| Nocardiosis |
| Candidiasis |
| Parasitic |
| Toxoplasmosis |
| Schistosomiasis |
| Visceral larva migrans |
| Visceral leishmaniasis |
| Rickettsial |
| Coxiella burnetii (Q fever) |
| Bontonneuse fever |
| Spirochetal |
| Secondary syphilis |
