When should the sugar-coated vaccine be taken?

The sugar-pill vaccine is generally orally administered once to newborns at the age of 2, 3, 4 months, and 4 years old. The sugar-pill vaccine, also known as the live attenuated poliomyelitis vaccine, is a vaccine used to prevent poliomyelitis. Poliomyelitis is a contagious disease caused by poliovirus infection, commonly known as infantile paralysis, which can damage the motor nerves of the body, leading to paralysis, numbness of limbs, and causing serious sequelae. The polio vaccine is administered orally in the form of sugar-pills, which are live attenuated vaccines. The vaccination schedule involves administering the sugar-pill vaccine three times to newborns at the age of 2, 3, and 4 months, followed by a booster vaccination at the age of 4 years. This schedule generally prevents poliovirus infection. Currently, polio has been largely eliminated, reducing the risk of the disease. However, due to the severity of its consequences, there is still a risk of recurrence in some special cases. Therefore, the sugar-pill vaccine remains a mandatory vaccination in China.