Danica on Instagram: "This parasite changes how your brain works and it’s shockingly common. It is known as the cat parasite because it can only reproduce in the gut of a cat but contaminated food and water is another common way to contract it. This is why doctors warn pregnant mothers against changing cat litter during pregnancy. Toxoplasma gondii is a protozoan parasite carried by over 2 billion people worldwide, often with no symptoms. But new research shows it may not be as “harmless” as onc