Polio: Forgotten but not gone

Polio, a viral infection that attacks the nervous system and primarily impacts legs and lungs, was one of the most feared diseases of the 20th Century. New York City reported, and quarantined, 6,000 cases in 1916. Between the 1940s and early 1950s, polio crippled 35,000 people each year in the US. A vaccine for polio,…