Malaria ()
| 2004 |
| Buja-Rural | 216,063 |
| Gitega | 213,183 |
| Ngozi | 191,521 |
| Ruyigi | 166,056 |
| Muyinga | 126,642 |
| Makamba | 109,600 |
| Kayanza | 94,432 |
| Buja-Mairie | 89,594 |
| Kirundo | 89,002 |
| Cankuzo | 79,305 |
| Karuzi | 73,462 |
| Cibitoke | 66,848 |
| Bubanza | 57,253 |
| Bururi | 54,252 |
| Muramvya | 44,433 |
| Mwaro | 39,272 |
| Rutana | 38,974 |