Chloroquine-resistant Plasmodium falciparum infections among UK travellers returning with malaria after chloroquine prophylaxis.


Sutherland, CJ; Haustein, T; Gadalla, N; Armstrong, M; Doherty, JF; Chiodini, PL; (2007) Chloroquine-resistant Plasmodium falciparum infections among UK travellers returning with malaria after chloroquine prophylaxis. The Journal of antimicrobial chemotherapy, 59 (6). pp. 1197-9. ISSN 0305-7453 DOI: 10.1093/jac/dkm104

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Abstract

OBJECTIVES: We sought to identify chloroquine-resistant Plasmodium falciparum parasites among 66 travellers who presented in the UK with malaria. METHODS: A multiplex real-time PCR assay was devised to identify wild-type and two distinct chloroquine-resistance-associated alleles of the pfcrt gene. RESULTS: Those with documented use of chloroquine/proguanil prophylaxis were more likely to carry parasites with resistance-associated alleles of pfcrt than were patients who had been using antimalarials other than chloroquine (92.9% versus 37.5%; P = 0.011). We also found evidence that people reporting optimum compliance with chloroquine prophylaxis during malaria exposure were more common among malaria cases than were those reporting optimum compliance with other regimens (OR 3.85, 95% CI 1.61-9.69; P = 0.0008). CONCLUSIONS: Chloroquine, known to be failing as therapy for falciparum malaria worldwide, is also failing to provide adequate malaria prophylaxis for travellers.

Item Type: Article
Faculty and Department: Faculty of Infectious and Tropical Diseases > Dept of Immunology and Infection
Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
Research Centre: Antimicrobial Resistance Centre (AMR)
Malaria Centre
PubMed ID: 17475629
Web of Science ID: 247727300025
URI: http://researchonline.lshtm.ac.uk/id/eprint/9040

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