[Difficulties in the prevention of malaria in Spain: apropos of 3 cases]

We report three cases of malaria by Plasmodium falciparum in travelers to West Africa, who had correctly followed, without interruption until the time of diagnosis, the prophylactic regimen that had been prescribed to them (chloroquine base 5 mg/week and pyrimethamine 50 mg/week). We point to the need to have, in Spain, a pharmacopeia which adequately covers the needs of travelers to tropical countries according to experience and international regulations, and also to have adequate health information available to international travelers.