Kittens are the most susceptible to feline distemper.  When this virus hits, it can kill your cat no matter what her age is.  This disease doesn’t affect dogs or people but it does spread very quickly among cats.  Transmission occurs through contact with an infected cats feces, bodily fluids or through fleas.  The virus attacks the cats gastrointestinal track. Typical symptoms includes listlessness, fever, loss of appetite and vomiting.  To prevent this horrible disease, have your kitten vaccinated as soon as she stops nursing. If you adopt a kitten, always check whether or not it has been vaccinated for distemper. Then follow your vets recommendations for re -vaccination so your cat stays free of infection.  Remember, there is no pet medication that could cure this disease.