The main sources of canine distemper virus infection are sick dogs and virus-carrying dogs. The virus exists in the liver, spleen, brain, kidneys, and lymph node tissues. It is excreted out of the body through tears, nose juice, saliva, urine and exhaled air, contaminating the surrounding air, water sources, food, and utensils, becoming a vector for the disease. Clinically recovered dogs can detoxify to the outside world for a long time and are a source of infection that is often ignored by people. The main route of transmission is the respiratory tract, followed by the digestive tract. Infection occurs through droplets through the conjunctiva, oral cavity, nasal mucosa, vaginal and rectal mucosa.

How to prevent and treat canine distemper:

1. Treatment of canine distemper. In the treatment of canine distemper, large doses of canine distemper hyperimmune serum can be injected after the clinical symptoms appear, which can control the development of the disease. Giving a large dose of hyperimmune serum during the initial fever period of canine distemper can enhance the body's sufficient antibodies to prevent clinical symptoms and achieve the purpose of treatment.

2. Prevention of canine distemper. Vaccination is required to prevent canine distemper virus. For the health of the dog, the owner should take the dog for vaccination regularly to ensure that the dog has enough antibodies to resist the virus.