Plasmodium falciparum

Isolate from a UK-resident adult male of Kenyan origin who had spent three weeks in Nairobi and coastal Kenya. Symptoms arose two weeks after return to the UK, and persisted for one week before attending HTD with 3.6% P. falciparum parasitaemia by microsc

Isolate from a UK-resident adult Nigerian woman who spent two weeks in Lagos with her husband. On return to the UK, symptoms arose, and the patient reported taking two tablets of Nivaquine (probably 200 mg chloroquine-sulphate) four days before presenting

Obtained from Dr. W Trager, Rockefeller University, New York in October 1978

Isolate from a UK-born UK resident who frequently travels to Africa, and with a previous history of three treated malaria infections, presented six days after return from a six-week trip to South Sudan

Isolate from an Indian-born young adult male, resident in Singapore but studying in the UK. The subject returned to the UK following a two-week trip to Ghana for a college project.

Isolate from a young British adult male, referred to HTD by an outside hospital in London, as a suspected case of artemether-lumefantrine treatment failure.