A Step Closer to the Defeat of Polio
By DONALD G. McNEIL Jr.
The last known Type 3 polio case occurred three years ago, which means that type has most likely disappeared for good.
Published: November 23, 2015 at 07:00PM
from NYT Health http://ift.tt/1NnWOJT
A Step Closer to the Defeat of Polio DONALD G. McNEIL Jr. The last known Type 3 polio case occurred three years ago, which means that type has most likely disappeared for good. http://ift.tt/1NnWOJT http://ift.tt/1X9P3fn Health The New York Times November 23, 2015 at 07:00PM