this small series of cases demonstrates the prolongation of incubation periods of malaria following chemoprophylaxis , the spread of chloroquine-resistant strains of plasmodium falciparum ( both to western and eastern regions of png ) , the ineffectiveness of chloroquine against entamoeba histolytica in the intestine and the value of oral penicillin as a prophylactic for filarial lymphangitis .
C0024530
malaria
C0008269
chloroquine