Volume 79, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


The gametocytocidal and asexual stage activities of eight antimalarial and eight antibiotic-containing regimens were evaluated in 349 adult patients with malaria. Gametocytemia was found in 63% of patients (22% before and 41% after treatment). The median (range) gametocyte clearance time was 24 hours (range, 2–504 hours) and correlated with asexual parasite clearance time ( = 0.52, < 0.001). Gametocytemia in vivax malaria was more common in patients with admission parasitemia > 10,000/μL and after treatment with drugs which have weak antimalarial activity, and was also associated with an increased rate of vivax reappearance (29.4% versus 14.1%, = 0.002). Sexual stage activities corresponded with asexual stage activity for all tested regimens. Treatment with potent antimalarial drugs reduces the transmission potential of


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  • Received : 24 Jan 2007
  • Accepted : 02 Jun 2008

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