Efficacy of 5 day radical treatment of primaquine in Plasmodium vivax cases at the BHEL industrial complex, Hardwar (U.P.).

Studies on 725 P. vivax infected patients at the Bharat Heavy Electricals Ltd. produced 6.9 per cent relapse rate after administration of radical treatment of primaquine / 15 mg daily for 5 days as followed under the National Malaria Eradication Programme. Maximum relapses were recorded in a female patient in spite of repeated radical treatment.