Office of Communications2018-08-242018-08-242011-09-15https://hdl.handle.net/1813/58535This news item is about: Cornell researchers discover how an important human parasite hacks our immune systems. Toxoplasma gondii parasites can invade your bloodstream, break into your brain, and prompt behavioral changes from recklessness to neuroticism. These highly contagious protozoa infect more than half the world’s population, and most people’s immune systems never purge the intruders.en-USCornell University. College of Veterinary Medicine -- Periodicals.; Denkers, Ericarticle