Feline calicivirus infection is a common respiratory disease in cats. The virus attacks the respiratory tract (nasal passages and lungs), the mouth (with ulceration of the tongue), the intestines and the musculoskeletal system. It is highly communicable in unvaccinated cats, and is commonly seen in multi-cat facilities, shelters, poorly ventilated households and breeding catteries.
Vaccination against the calicivirus is strongly advised. This infection can occur in cats of any age, but young kittens older than six weeks have been found to be most susceptible.
Rabies is an infectious viral disease that is almost always fatal following the onset of clinical symptoms. Rabies affects the brain and spinal cord of all mammals, including cats, dogs and humans.
Symptoms of rabies in cats can be varied and can take months to develop. Classic signs of rabies in cats are changes in behavior (including aggression, restlessness and lethargy), increased vocalization, loss of appetite, weakness, disorientation, paralysis, seizures and even sudden death.
Cats can acquire a variety of intestinal parasites, including some that are commonly referred to as “worms.” Infestations of intestinal worms can cause a variety of symptoms. Sometimes cats demonstrate few to no outward signs of infection, and the infestation can go undetected despite being a potentially serious health problem. Some feline parasitic worms are hazards for human health as well.