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PBS News Hour

Health experts sound the alarm as new polio cases emerge

Season 2022 Episode 237 | 6m 17s

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 detected, while the global vaccination campaign has decreased cases by 99.9 percent. But the virus now seems to be gaining a foothold again in some countries. Dr. Yvonne Maldonado of the Stanford School of Medicine joins William Brangham to discuss.

Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Consumer Cellular and Cunard Cruise Line. For a complete list of funders for the PBS NewsHour and PBS NewsHour weekend, click here.
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