Poliomyelitis live vaccines could prevent the type I, II, III poliovirus infections, is one of the most economical and efficient poliomyelitis vaccine, which has been used for more than 50 years in our country. Because our government vigorously promote the implementation of the immunization strategy, China had no found reported cases caused by local wild strain, since October 1994. Poliomyelitis could be effectively controled, which had been called "a threat to children's life and health of the biggest killers of paralysis". In October 2000, China was declared polio-free by the Regional Commission for the Certification of Poliomyelitis Eradication (RCC) in WHO Western Pacific Region. This is a great performance of the world public health history after the global eradication of smallpox, the protection tens of millions children's physical and mental health, very greatly improve the quality of the population.
As China's largest polio vaccine production and research base, the mission of the Institute of Medical Biology is to develop and resarch of Poliomyelitis vaccines. The institute developed the first oral polio live attenuated, and the first new form Poliomyelitis Vaccine in Dragee Candy, under the guidance of the first generation of scientists. With the implementation of the WHO polio program, the institute has developed the whole series of national immunization polio vaccines ,such as Oral Poliomyelitis live vaccines(monkey kidney cell) ,Poliomyelitis live vaccines(human diploid cell), I+III Poliomyelitis live vaccines(human diploid cell), provided a strong guarantee for the polio-free status in our country.