Polio usually refers to the polio vaccine, and pentavalent usually refers to the pentavalent vaccine. Polio vaccine and pentavalent vaccine should be selected for vaccination according to your own situation, usually polio vaccine plus quadruple vaccine has basically the same effect as pentavalent vaccine.1. Polio vaccine: an effective means of preventing and eradicating polio, polio vaccine is divided into two types, one is live attenuated polio vaccine (sugar pills and drops) and the other is inactivated polio vaccine, depending on The vaccination schedule varies slightly depending on the type of vaccine, and generally requires four doses of vaccine to prevent one disease. For people who are allergic to vaccine excipients and antibiotics, as well as those with fever and chronic diseases, it is prohibited. After vaccination, symptoms such as fever, nausea, diarrhea, rash, and pain at the vaccination site may occur, and it is necessary to observe the polio vaccine for half an hour before leaving to avoid adverse reactions; 2. Five vaccines: including inactivated polio vaccine, acellular polio vaccine, and Haemophilus influenzae type B vaccine. It can prevent five diseases at the same time, including diphtheria, pertussis, tetanus, polio and pneumonia caused by Haemophilus influenzae type B. The five-dose vaccine can minimize the number of injections from 12 to 4, which is safer and can reduce the adverse effects of vaccination on babies and save time and energy for parents. It is also necessary to stay in the observation room for half an hour after vaccination before leaving to avoid serious adverse reactions. Thus, vaccination usually increases the body’s specific immunity, improves the body’s immunity to diseases, and reduces the risk of spreading the disease and the severity of the condition. The vaccine corresponding to each disease is not the same, and vaccination should be judged according to the health condition before choosing the vaccination.