That’s not very likely. Cats can become infected only when they hunt outside or when you feed them raw meat. Moreover, they become infected only once in a lifetime, usually as kittens. The infected animal then excretes cysts for only about 10 days and those would have to ripe in the open air for more than a day to become infectious at all. People who regularly clean after their cats have practically nothing to worry about. That said, it is still not advisable to let your cat jump on your dining table. Pregnant women should also take the precaution of avoiding manipulation with cat excrement and minimise all intimate contact with their cat. Some data suggest that even cat bites and scratches can be a source of infection, which is why pregnant women should avoid activities that may lead to such injuries.