Distemper
This is a viral disease that is easily spread through direct contact and contact with bodily fluids or contaminated food and water. Puppies are the most susceptible to the disease and also have the highest mortality rate from severe cases or complications from the disease. Vaccinations have proven to be effective, so it is important to have your puppy vaccinated. The disease can be treated if contracted, but requires quarantining your dog from other dogs for many months, and the disease can also result in some long term health problems.