Evidence of Artemisinin-Resistant Malaria in Africa

  24 September 2021

In the six Southeast Asian countries that make up the Greater Mekong Subregion, Plasmodium falciparum has developed resistance to derivatives of artemisinin, the main component of first-line treatments for malaria. Clinical resistance to artemisinin monotherapy in other global regions, including Africa, would be problematic.

In this longitudinal study conducted in Northern Uganda, we treated patients who had P. falciparum infection with intravenous artesunate (a water-soluble artemisinin derivative) and estimated the parasite clearance half-life. We evaluated ex vivo susceptibility of the parasite using a ring-stage survival assay and genotyped resistance-related genes.

The independent emergence and local spread of clinically artemisinin-resistant P. falciparum has been identified in Africa. 

Author(s): Betty Balikagala, M.D., Ph.D., Naoyuki Fukuda, M.D., D.T.M.H., Ph.D., Mie Ikeda, Ph.D., Osbert T. Katuro, B.Sc., Shin-Ichiro Tachibana, Ph.D., Masato Yamauchi, M.P.H., Ph.D., Walter Opio, M.D., Sakurako Emoto, M.D., Denis A. Anywar, M.Sc., Eisaku Kimura, M.D., Ph.D., Nirianne M.Q. Palacpac, Ph.D., Emmanuel I. Odongo-Aginya, Ph.D., Martin Ogwang, M.D., M.M.E.D., Toshihiro Horii, Ph.D., and Toshihiro Mita, M.D., Ph.D.
Effective Surveillance  


Unrestricted financial support by:

Antimicrobial Resistance Fighter Coalition


JSS University


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