Toxoplasma Cyst Showing Dormant Parasite (image) Michigan Medicine - University of Michigan Share Print E-Mail Caption A Toxoplasma tissue cyst, showing the dormant bradyzoite form of the parasite in blue, and the "stomachs" (autophagosomes) is in red. The new study shows that interfering with a key enzyme used by bradyzoites during digestion can prevent that form of the parasite from surviving to cause an infection. Credit Carruthers lab, University of Michigan Usage Restrictions Credit University of Michigan Share Print E-Mail 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.