Toxoplasma Cyst (IMAGE) University of Leeds Caption This is a toxoplasma cyst outlined in red fluorescent cyst dye in mouse brain section. Hundreds of parasites are visible in the cyst as blue dots (nuclei stained blue) and in surrounding brain tissue. Credit image courtesy of E. Prandovszky 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.