Therapeutic efficacy of sulfadoxine-pyrimethamine in uncomplicated Plasmodium falciparum malaria 3 years after introduction in Mpumalanga
Objectives. To assess therapeutic efficacy of sulfadoxineyrimethamine (SP) in treatment of uncomplicated Plasmodium falciparum malaria 3 years after introduction in Mpumalanga, South Africa.
Se'tting. Tonga district with a population of 116 418 and subject to seasonal malaria, with an average annual incidence ; 3 200 cases.
Subjects. One hundred and nineteen malaria patients presenting to a sentinel surveillance clinic and recruited according to World Health Organisation (WHO) criteria.
Methodology. Patients satisfying WHO inclusion criteria were defeated with a single oral dose of SP and the response of infection to treatment in each patient was routinely monitored clinically and parasitologically on days 1, 2, 3, 7, 11, 21, 28 and 42 post-treatment. One hundred and ten patients completed follow-up to day 42 or evidence of clinical or parasitological failure.
Results. The cure rate at day 42 was 93.6% (103/110). Two patients (1.8%, RII) were early treatment failures on day 3, while recrudescence (4.5%, RI) occurred in 5 patients on day 28 (N = 3) and on day 42 (N = 2).
Conclusion. In Mpumalanga P. falciparum remains sensitive to SF, with no significant difference between the baseline cure rate (94.5%) and the cure rate in the present study (93.6%).
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