Polio (also known as polio) is one of the few diseases that can be eliminated, mainly because people are the only ones infected with polio virus, and with effective vaccines, immunity can be maintained for life.
The World Health Organization recommends four strategies to eradicate polio: routine immunization, mass movement, monitoring and comprehensive vaccination, especially the National Immunization Day, which is a form of mass movement to strengthen immunization.
Polio is one of the few diseases that can be eliminated, because polio virus only infects people, has effective vaccines, can exist for life, has no chronic virus carriers, no animal or insect hosts, and only exists in the environment for a short time. Once the virus leaves the human host, it will die quickly if it is immunized.
When the routine immunization rate increases, the spread of wild virus is limited, but it will not stop together soon. If the goal is eradication rather than control, further measures are needed.