Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis cause similar symptoms in dogs, including:
- Loss of appetite
- Swollen lymph nodes
- Joint swelling or pain
These diseases can have serious complications, so prompt treatment is a must. Tick-borne diseases are uncommon in cats, but they can get a tick infection called cytauxzoonosis, which is often fatal -- so do your best to keep pests off your cat and out of your home.