Cats with a straight, uncomplicated case of toxoplasmosis can recover if treated early with clindamycin and other support therapies. Cats that are young or showing multiple organ involvement have a very guarded prognosis. Cats that are immuno-suppressed have a poor prognosis.
As like most things in medicine, prevention is the way to go!
1. If pregnant, do not clean the litter box. Have someone else in the household empty the litter box daily.
2. Do not consume raw meat. Properly wash and clean all foods.
3. Wear gloves when gardening. Cats will defecate anywhere and that includes your garden soil.
4. If you have a sandbox in the back yard for children, make sure it is covered when not in use.
5. Ideally, keep all cats indoors. Without a cat crossing paths with a mouse or other rodent, the life cycle can not complete and hence there wouldn't be any human disease.
6. Dogs love getting into litter boxes and eating the contents. Elevate litter boxes up on an old table or facsimile to keep dogs from getting to the box.
The fact is, is that cats always get blamed for everything when the word "Toxoplasmosis" come up. In fact, more people get Toxoplasmosis in the United States much more frequently from handling contaminated meat.
Can a cat be checked for Toxoplasmosis? Yes they can be but the results are a twisted irony. If a cat tests positive on antibody titers, it just means that the cat had the infection in the past and has developed antibodies to the disease. This animal is probably immune for life and would not be a concern in any household. The irony is, is that most cats will test negative. That means they have never been exposed to the parasite BUT COULD BE IN THE FUTURE. For that reason, you have to be more concerned about the negative titer cats much more so than cats with an antibody titer.