<i>Toxoplasma gondii</i> Cell Membrane (IMAGE) Stockholm University Caption Image illustrates Toxoplasma gondii tachyzoites invading across the cell membrane of a host cell. Upon invasion, a signaling cascade is activated via chloride channels, GABA channels and calcium signaling that mediates the migratory activation of the infected immune cell. Credit Illustration: S. Kanatani Usage Restrictions Image can be used in media in relation to news article related to Stockholm University 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.