Chloroquine sensitivity of Plasmodium falciparum in Shankargarh block of Allahabad district (U.P.).

Chloroquine sensitivity of Plasmodium falciparum was carried out in Shankargarh block of Allahabad district, U.P. to confirm the presence of resistant strain in the area. A total of 47 cases were subjected to in vivo extended test, of which resistance was detected in 11 cases at R-II/R-III level and in 9 cases at R-I level. One case out of 18 subjected to standard 7-day in vivo test showed resistance at R-III level. Micro in vitro test was done for 24 cases, of which growth was seen in 21 control samples. Out of these 7 cases were found to be resistant. The significance of the findings are discussed.