The secondary infections that usually occur are treated with antibiotics. Drugs are also given to control vomiting and diarrhea . Some cats do not recover from this disease, but many will if aggressive supportive therapy is given. Fortunately excellent vaccines are available and are routinely recommended by veterinarians as part of a vaccination program. The immunity conferred by panleukopenia vaccine is generally strong and long-lasting, but it decreases with time.
Annual boosters are highly recommended.
Once the virus runs its course, the lining of the stomach and intestines recovers quickly without scarring. In addition, the bone marrow produces new white blood cells to replace those that were lost. The cat recovers completely. Since the panleukopenia virus is difficult to kill, most disinfectants are not effective. We recommend 1 cup of chlorine bleach per gallon of water as the best way to kill the virus.