Thanks for your query.
I will try my best to provide you with best possible professional recommendations to your questions.
Even though i am not an veterinarian, as i have cat in my home, i like provide you with the information that i have got.
From the information i got it suggests the long-term prognosis for infected cats is good, and that they will eventually overcome the infection.
The organism is resistant to most traditionally used anti-protozoal drugs such as fenbendazole and metronidazole
A recent study by Dr Jody Gookin at the North Carolina State University (who has performed most of the work on this infection in cats) identified that ronidazole (an antibiotic similar but not the same as metronidazole) has good efficacy against T. foetus infection in cats (JVIM, 2005 19: 436; JVIM, 2006 20: 536-543). From limited studies its use appears to be relatively safe in cats, although a small number of patients have developed neurological signs.
Yet again, I do hope that you have found something helpful and I will be glad to answer any further query.