within two months of treatment for falciparum malaria , plasmodium vivax infections developed in 58 ( 33 % ) of 174 patients who had received a quinine or quinidine regimen and in 46 ( 32 % ) of 145 patients who had received mefloquine with inpatient follow-up of more than six weeks .
C0024535
falciparum malaria
C0034417
quinine