Launched in 1988 after the World Health Assembly passed a resolution to eradicate polio, the Global Polio Eradication Initiative, along with its …
常见问题解答
问:
What is polio?
答:
Poliomyelitis (polio) is a highly infectious disease caused by the polio virus. It invades the nervous system, and can cause paralysis or even death in a matter...
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