Toxoplasmosis

touching or coming into contact with infected cat feces (cats get the infection from eating infected rodents, birds, or other small animals)

I was told it was more of a concern when you have outdoor cats that also use a litter box in the house. I looked up some info on it and it said that a cat gets the infection when eating something that has been infected with it. Our cats are strictly indoor cats and have no contact with with other animals.