Preservation of Avian Malaria Parasites by Low-Temperature Freezing. ∗

Abstract

Summary

Seven species of avian malaria plasmodia have been successfully preserved for periods up to 90 days by low-temperature freezing. Very rapid freezing” and thawing seem of more importance than the occurrence of fairly considerable temperature variations. For maintaining stocks of malaria for research or class use this method of preservation has much potential importance. It is probable that all species of plasmodia can be preserved in this way equally well. And it does not appear that different stages of the parasite are much differently affected.