After taking Miao Sanduo, cats may develop symptoms such as diarrhea and vomiting, and some cats may develop allergies, which may even lead to death. After the cat is vaccinated, you can first observe the cat's condition in the hospital for a period of time. If there is any abnormality, immediately see a pet doctor for examination and treatment. When vaccinating your cat, you must go to a regular pet hospital to avoid danger to your cat’s life.