| Malaria Risk | Type of prevention | |
| Type I | Very limited risk of malaria transmission | Mosquito bite prevention only |
| Type II | Risk of P. vivax malaria or fully chloroquine-sensitive P. falciparum only | Mosquito bite prevention plus chloroquine chemoprophylaxis |
| Type III | Risk of malaria transmission and emerging chloroquine resistance | Mosquito bite prevention plus chloroquine+proguanil chemoprophylaxis |
| Type IV | High risk of falciparum malaria plus drug resistance, or moderate/low risk falciparum malaria but high drug resistance | Mosquito bite prevention plus either mefloquine, doxycycline or atovaquone/proguanil (take one that no resistance is reported for in the specific areas to be visited |