| [sensitivity of plasmodium falciparum to chloroquine in the hyperendemic malaria savannah zone of burkina faso ex-upper volta. use of in vivo and in vitro tests. demonstration of a resistant strain in vitro]. | studies on the response of p. falciparum to chloroquine was conducted in schools located in the environs of koudougou (burkina faso, upper-volta), where malaria is meso to hyperendemic, using in vivo studies and in vitro macroculture tests. cases were obtained from school children, semi-immune asymptomatic carriers, in the 7-12 years-group. | 1984 | 6395988 |