For the first time an Amazonian strain of Plasmodium falciparum resistant to FansidarR (pyrimethamine + sulfadoxine) and quinine + tetracycline, taken sequentially is described. This case involves a female patient 13 years old, living for five years in Ariquemes County, State of Rondônia, in the Brazilian Amazon. The infection was cured with a single high dose of chloroquine administered intravenously. The authors point out the high valor of chloroquine in treating falciparum-resistant malaria, especially when given in higher doses than the standard one used for malaria therapy.
Plasmodium falciparum; Malaria