- Toxoplasmosis gives mild symptoms in people, sort
of flu-like. I have owned
cats all my life and always cleaned their litter box, and after forty years of this, I got an antibody test to see if I had ever had toxoplasmosis (because I wouldn't know, frankly. It might seem like a mild flu.) And guess what, after years and years of cleaning cats' litter boxes, I have NEVER had toxoplasmosis.