Polio

Mysterious Paralyzing Illness

A mysterious, polio-like sickness has affected more than 20 children in California so far. Doctors are baffled as to the cause. Learn the signs and symptoms, and hear from one family whose 2-year-old son has been struck by the paralyzing illness.

How Vaccines Work

Pfizer's Chief Medical Officer Dr. Freda Lewis-Hall joins E.R. physician Dr. Travis Stork to discuss potential vaccine side effects and how to get the best benefits from your vaccinations.

Dangerous Diseases: Back from Extinction?

Vaccines have reduced or eliminated many infectious diseases that have harmed or killed millions of people. Pfizer's Chief Medical Officer Dr. Freda Lewis-Hall joins E.R. physician Dr. Travis Stork to talk about the ways that vaccines work.

Polio: Still a Threat?

In the United States, polio seems like a disease of the past, but countries like northern Nigeria, northern India and parts of Afghanistan and Pakistan account for more than 75 percent of global polio cases today. Learn how modern medicine has worked...

Polio: Still a Threat?

In the United States, polio seems like a disease of the past. Since 1955, Americans have received vaccines to defend against the condition, and by 1979 the country became polio-free.