Korean vivax malaria. IV. Curative effect of 15 milligrams of primaquine daily for 7 days.
In a study of the curative effect of 15 mg. of primaquine daily for 7 days against late attacks, the relapse rate in patients with Korean vivax malaria was reduced from 50 per cent in patients treated with chloroquine to 3 per cent in patients treated with chloroquine and primaquine. The minimum follow-up in any patient was 3 months.
Full text article: http://www.ajtmh.org/content/journals/10.4269/ajtmh.1953.2.983