Infectious Diseases - Research Publications

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Author: Caruana, Sonia × Author: Cowman, Alan × End date: 2009 × Start date: 2005 ×

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    Prevalence of polymorphisms in DHFR, DHPS, PFMDR1 and PFCRT genes of Plasmodium falciparum isolates in Quang Tri Province, Vietnam
    Phuc, BQ ; Caruana, SR ; Cowman, AF ; Biggs, B-A ; Thanh, NV ; Tien, NT ; Thuan, LK (SEAMEO TROPMED Network, 2008-11)
    In 2002 an antimalarial drug resistance survey was carried out in a seasonally endemic area of Vietnam. Sulfadoxine/pyrimethamine (S/P) was the standard treatment recommended for uncomplicated Plasmodium falciparum malaria in that area at the time. Early or late treatment failure as defined by WHO was observed in 14.9% (7/47) of patients. Molecular analysis of treatment failure isolates identified that 5/6 carried two or more dhfr and dhps polymorphisms associated with S/P resistance. Chloroquine resistance-associated polymorphisms occurred in 38.5% (15/39) of the isolates. These results support the move to artemisinin-based combination therapy for malaria in Vietnam.