Toxoplasma (IMAGE) Stockholm University Caption The image shows an immune cell that has been infected by Toxoplasma parasites (red). The surface of the cell is colored in green and the nucleus of the cell in blue (Image: Antonio Barragan). Credit Antonio Barragan Usage Restrictions Free for media use. License Original 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.