Kennel Cough is a highly contagious respiratory infection in dogs, primarily caused by a combination of viruses and bacteria, including Bordetella bronchiseptica. It spreads easily in places where dogs gather, such as dog parks and boarding kennels. Symptoms typically include a dry, honking cough, sneezing, and nasal discharge. While kennel cough is usually mild and self-limiting, it can lead to more serious complications, especially in puppies or older dogs with weakened immune systems. Vaccination is available to help prevent the disease, and treatment often involves rest and supportive care to ease symptoms.