IMHA is a condition of the blood that causes severe anaemia. IMHA causes the body (more specifically the immune system) to attack and destroy its own red blood cells.
Infectious hepatitis is a serious disease also known as ‘canine adenovirus’ or ‘Rubarth’s Disease’. It affects the liver and other major organs causing a range of symptoms. Your dog can catch infectious hepatitis from contact with an infected dog, or somewhere an infected dog has been.
Mounting and humping is normal for both male and female dogs, and occurs for a number of reasons (not always sexual). Distracting your dog, teaching them appropriate behaviour and neutering can help prevent humping.