<i>Plasmodium vivax</i> Transmitted from Man to Monkey to Man

Abstract

Blood forms of human vivax malaria infected splenectomized night monkeys (Aotus trivirgatus). Anopheles albimanus mosquitoes transmitted the in fection from a monkey to two human volunteers; parasites and symptoms ap peared 11 days later. Blood forms of vivax malaria from each of the two humans infected other night monkeys.