The emergence of poliomyelitis poses a great threat to human health. It is a serious infectious disease that occurs in infants and children under 5 years old. Polio vaccine is one of the effective ways to prevent the disease, and It is very economical and can be vaccinated free of charge in our country. There are two types of polio vaccines: sugar drops and sugar pills. So, which is better, polio vaccine drops and sugar pills?

　　The current oral "sugar pill" tOPV is reduced Poison live vaccine, and the injected IPV is inactivated vaccine.

　　In terms of toxicity, live attenuated vaccines are made by weakening the virus’s virulence, while inactivated vaccines are made by inactivating the virus with formaldehyde, so the Live vaccines are more safe than live attenuated vaccines, and live attenuated vaccines taken orally have better intestinal immunity than inactivated vaccines.

　　 Sugar pills and drops are the same attenuated live vaccines, except that sugar pills are trivalent polio vaccines, and drops are bivalent polio vaccines. The viruses that cause polio are divided into three types: type I, type II, and type III. The sugar pills used to vaccinate babies in the past include these three types of vaccine strains.

　　 Through the widespread use of sugar pills, the wild type II polio virus strain no longer existed in 1999. In 2015, the World Health Organization also proved that type II poliomyelitis has been eliminated globally, so take II Live attenuated polio vaccine is of little significance.

　　And the study found that the disability caused by the type II virus in the trivalent polio vaccine accounts for about 40% of all patients. If the type Ⅱ virus is removed, the risk of disability can theoretically be reduced from 1/25 million to 1/42 thousand. In summary, considering that the global eradication of polio is not over, in order to prevent the transmission of imported poliovirus, China needs to establish a strong polio intestinal immunity. Therefore, it is not recommended to vaccinate the whole course of IPV, but after one dose of IPV, Inoculate bOPV as soon as possible.

　　Sequential immunization procedures used in conjunction with two different polio vaccines are more in line with the actual situation in my country at this stage. Therefore, the sweet "sugar pill" in children''s memories will be gone forever. At the same time, the child''s parents or recipients should correctly understand the abnormal reaction of vaccination, and if it occurs, it should be properly handled, and corresponding treatment measures should be taken as early as possible to reduce the risk of abnormal reaction.