Cats should be prevented from eating raw meat, bones, entrails, and unpasteurized milk. Flies and cockroaches can be carriers of the Toxoplasma organism and should not be eaten by cats. It is best to discourage the hunting of wild prey. Also, cats should be kept away from facilities that produce meat.
Humans can prevent infection by wearing gloves when gardening, covering outdoor sandboxes, thoroughly cooking meat to 150� F, washing hands and cutting boards well after handling raw meat, and drinking only pasteurized milk. Pregnant women and immunocompromised people such as AIDS and chemotherapy patients should avoid contact with litter boxes and, before eating, should wash their hands thoroughly if there has been recent physical contact with a cat. Litter boxes should be cleaned daily, as the oocysts, or eggs, shed in the feces are not infective for 24 hours.