This is *always* a concern with clients of ours. Wash your hands, wash your food, be careful in the yard and 9 times out 10, you will be fine. Hygiene, Hygiene, Hygiene! Fullertorrey, back in the day when Scott worked for some mental illness advocacy- was a prominent figure on this idea. Except he said it causes schizophrenia. Until the studies are out that every one with mental illness is tested for toxo- you can only look at them as a theory, not a fact. Yet.
Read the article Is My Cat Driving Me Crazy?