| Etiology | Causes |
| Infection | Toxoplasmosis |
|
| Rheumatic fever |
|
| Malaria |
|
| Myocarditis |
|
| Helminthic parasites |
| Allergy | Eosinophilia |
|
| Auto-immunity |
| Malnutrition | Protein deficiency |
|
| Magnesium deficiency |
| Toxic Agents | Cerium |
|
| Cassava |
|
| Thorium |
|
| Serotonin |
|
| Plant toxin |
|
| Vitamin D |