Malaria (IMAGE) U.S. National Science Foundation Caption Variations in the same gene affect the rate of parasite infection in both humans and baboons. Credit Zina Deretsky, National Science Foundation Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.