The attenuated and inactivated polio vaccines are medically known as inactivated polio vaccine and live attenuated polio vaccine. Generally speaking, there is no such thing as which one is better. The difference lies in the way they are used and the way they work. 1. Mode of use: Inactivated polio vaccine can be used to prevent polio, is a kind of imported vaccine, needs to be injected into the human body through the way of intramuscular injection, and for the human body’s side effects are relatively small. The live attenuated polio vaccine can also be used to prevent polio, and can be taken orally into the body, but the side effects on the human body are greater than those of the inactivated polio vaccine. 2. Mode of action: Polio inactivated vaccine is made of inactivated virus, which has completely lost its virulence and is not infectious, and can stimulate the human immune system to produce antibodies after injection to achieve the purpose of prevention. The live attenuated polio vaccine is a vaccine that makes the virus and bacteria lose their pathogenicity during the production process, but maintains the ability to reproduce, and will produce an immune response when it enters the body to achieve preventive effects. It is recommended to choose a vaccine that suits your needs.