| Viral |
- Adenovirus
- Arboviruses
- Coxsackieviruses types A and B
- Cytomegalovirus
- Echoviruses
- Encephalomyocarditis virus
- Epstein-Barr virus
- Herpes simplex virus types 1 and 2
- Human herpes virus 6 (in children)
- Human Parechovirus
- Human immunodeficiency virus
| - Influenza A and B
- Lymphocytic choriomeningitis virus
- Measles
- Mumps
- Parainfluenza
- Poliovirus
- Rotavirus
- Rubella
- Toscana virus
- Varicella-zoster virus
|
| Bacterial |
- Actinomyces spp
- Bacterial endocarditis
- Borrelia burgdorferi (Lyme disease)
- Borrelia recurrentis (relapsing fever)
- Brucella spp
- Chlamydia spp
- Leptospira spp
- Mycobacterium tuberculosis
- Mycoplasma hominis
| - Mycoplasma pneumoniae
- Nocardia spp
- Parameningeal bacterial infection (epidural, subdural abscess)
- Partially treated bacterial meningitis
- Rickettsia spp
- Spirillum minor (rat bite fever)
- Treponema pallidum (syphilis)
- Ureoplasma ureolyticum
|
| Fungal |
- Aspergillus spp
- Blastomyces dermatitidis
- Candida spp
- Coccidioides immitis
- Cryptococcus neoformans
- Histoplasma capsulatum
- Sporothrix schenckii
|
| Parasitic |
- Angiostrongylus cantonensis
- Taenia solium (cysticercosis)
- Toxoplasma gondii
- Trichinella spiralis
|
| Drug |
- Anti-CD3 monoclonal antibody
- Azathioprine
- lbuprofen
- Other NSAIDs
- Pyridium (phenazopyridine)
- Trimethoprim-sulfamethoxazole
|
| Malignancy |
- Leukemia
- Lymphoma
- Metatstatic carcinomas and adenocarcinomas
|
| Autoimmune |
- Behçet disease
- Sarcoidosis
- Systemic lupus erythematosus
- Vogt-Koyanagi-Harada syndrome
|
| Other |
- Epidermoid cyst
- Postvaccination
|
