| malariometric survey in keoudom district, laos: sensitivity of plasmodium falciparum to anti-malarials and automedication with chloroquine. | a malariometric survey was conducted in the keoudom district, in the northern part of vientiane province, laos, where an artificial dam-lake on the nam river is located. the parasite rate of the whole cohort representing 1,105 subjects was 2.44% with the predominance of plasmodium vivax (70%), while p. falciparum represented 30% with the average parasite density index 3. the low spleen rate (2.3%) characterized the study area as a hypoendemic zone. ifat antibodies were examined in 419 subjects. ... | 1992 | 1488689 |