Silkworm, a Useful Animal Infection Model (IMAGE) Okayama University Caption Silkworms are used in infection experiments to perform experimental evolution of pathogenic bacteria. Credit CHIKARA KAITO Usage Restrictions The image may only be used with appropriate caption or credit. 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.