Canine Coronavirus (CCV) is an intestinal disease that can affect any dog. It's highly contagious and can leave your dog feeling very unwell. CCV is not related to COVID-19, a human-spread form of coronavirus, and it does not affect the respiratory tract. However, without prompt treatment, CCV can be fatal. Your dog can be exposed to CCV through contact with contaminated faeces, and dog's with a weakened immune system are at an increased risk of contracting the infection.