The parasite Toxoplasma gondii (TG) is widely spread, infecting about 30 – 50% of the world human population. The main host for TG is our beloved pet cats and cats in general. The parasite is transported to humans by eating insufficiently cooked meat or by contact with cat feces, putting the parasite in the stomach. From there it passes through the intestinal wall. Next our immune cells attack it but instead of killing it, they become “Trojan horses.”
People who have impaired immune systems and unborn fetuses that are infected with Toxoplasmosis have a high risk of death. However healthy people may show only mild symptoms.
Studies have shown that carriers of TG have more instances of mental illness such as schizophrenia, depression and anxiety disorders. Other studies have illustrated that people who are infected with TG may be more prone to aggressive and risky behavior. This is because TG will eventually get into a person’s brain.
The good news is that since the scientists at Stockholm University have unraveled the mystery of how TG works and is transported, they have found that when mice are infected with TG and given regular blood pressure medicine, it inhibits its spread.