Animal disease is a broad term that encompasses a variety of illnesses that can affect animals. AMES is a bacterial infection that affects the respiratory system of horses, cattle, and sheep. DISTEMPER is a viral infection that affects the respiratory, gastrointestinal, and nervous systems of dogs, cats, and ferrets. Anthrax is a bacterial infection that affects the skin, lungs, and intestines of livestock and wild animals. RABIES is a viral infection that affects the central nervous system of mammals, including humans. Mange is a skin condition caused by mites that affects many species of animals. Mono is a viral infection that affects the respiratory system of horses, cattle, and sheep.