title: [In vivo sensitivity of Plasmodium falciparum to piperaquine phosphate assayed in Linshui and Baisha counties, Hainan Province].
abstract: Fifty-three cases of falciparum malaria in Linshui County, Baisha County and Sanya Municipality were treated with piperaquine phosphate at a total dose of 1.5g base over 3 days in July to December, 1986. The mean defervescence time was 36 +/- 20.7h; the mean asexual parasite clearance time was 69.7 +/- 20.9h. At 14-28d follow-up recrudescence was observed with asexual parasitemia in 7 of the 47 cases, showing RI resistance to piperaquine. Gametocytemia was positive in 35 cases (74.5%) during the follow-up period.
authors.forename: C X
authors.initials: CX
authors.lastname: Lan
authors.forename: X
authors.initials: X
authors.lastname: Lin
authors.forename: Z S
authors.initials: ZS
authors.lastname: Huang
authors.forename: Y S
authors.initials: YS
authors.lastname: Chen
authors.forename: R N
authors.initials: RN
authors.lastname: Guo
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D000962:Antimalarials / Q000494:pharmacology / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D002681:China; D004351:Drug Resistance; D005260:Female; D006801:Humans; D008288:Malaria / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D010963:Plasmodium falciparum / Q000187:drug effects; D011804:Quinolines / Q000494:pharmacology / Q000627:therapeutic use*; D010879:Piperazines
chemical_list: D000962:Antimalarials; D011804:Quinolines; C034759:piperaquine; D010879:Piperazines