Distribution of drug resistant malaria
Distribution of drug resistant malaria (1)
- chloroquine-resistant falciparum malaria is now widespread (effectively universal) P. falciparum has also developed resistance to a variety of other agents in certain areas
- Chloroquine remains effective against P. ovale and P. malariae
- Chloroquine-resistant P. vivax is found in the Indonesian archipelago, the Malay Peninsula, including Myanmar, and eastward to Southern Vietnam and may have spread further.
- P. vivax with reduced susceptibility to primaquine is found in South-East Asia and Oceania and higher doses of primaquine are required to achieve radical cure of this parasite from those areas. A higher dose may also be required for P. vivax from India, Pakistan, Afghanistan and South America
Reference
- UK Health Security Agency. Malaria prevention guidelines for travellers from the UK (online). Last updated April 2025
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