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Knowlesi malaria in Vietnam

Janet Cox-Singh

Author Affiliations

Division of Cellular and Molecular Medicine, Centre For Infection, St George's University of London, Cranmer Terrace, London SW17 0RE, UK

The Malaria Research Centre, University Malaysia Sarawak, Malaysia

Malaria Journal 2009, 8:269  doi:10.1186/1475-2875-8-269

Published: 26 November 2009


The simian malaria parasite Plasmodium knowlesi is transmitted in the forests of Southeast Asia. Symptomatic zoonotic knowlesi malaria in humans is widespread in the region and is associated with a history of spending time in the jungle. However, there are many settings where knowlesi transmission to humans would be expected but is not found. A recent report on the Ra-glai population of southern central Vietnam is taken as an example to help explain why this may be so.