Studies in human malaria; results of massive subinoculation during latency from patients infected with St. Elizabeth strain vivax malaria.

The St. Elizabeth strain of Plasmodium vivax malaria consistently produces infections which exhibit several months of latency between early and late periods of ouvert activity. The experiments to be described in this report were designed to be determine whether or not circulating parasites could be demonstrated by blood transfusion during the period of long-term latency.