The trial showed the drug regime was effective against both Plasmodium falciparum and Plasmodium vivax malaria, the first time antimalarial drugs have been shown to prevent infections by both species of malaria. The treatment regime, called intermittent preventive treatment (IPT), protected the infants against malaria for at least six weeks after the end of treatment, showing that it had an ongoing protective effect and did not hinder the development of natural immunity.
