Public health experts sound the alarm as new polio cases emerge
Polio had been considered eliminated from the U.S. since 1979, when the last known case of the original strain of ...
Polio had been considered eliminated from the U.S. since 1979, when the last known case of the original strain of ...
The polio virus was present in wastewater in a New York City suburb a month before health officials there announced ...
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