Before Jonas Salk and his team invented a vaccine for the polio virus in 1952, humans had battled its paralyzing effects for a millennia. But a 30-year endeavor to rid the world of the incurable disease will render it virtually extinct by the end of 2017. This monumental achievement, rivaled only by the eradication of smallpox in 1980, is the result of coordinated efforts by scientists and volunteers to track its spread and deliver vaccines both orally and by injection to billions around the world.
Tracking The Decades-Long Fight To Eradicate Polio
For the second time in human history, scientists are about to rid the world of a devastating disease
By Erin BibaJan 20, 2017
Erin Biba
Erin Biba is a New York City–based freelance science journalist. Her work regularly appears in Newsweek, Scientific American and The Mythbusters' Tested.com.
















Volunteers who drive homeless people to shelters talk with a person from Ukraine in Berlin on Jan. 7, 2026.
Tasks that stretch your brain just beyond its comfort zone, such as knitting and crocheting, can improve cognitive abilities over your lifespan – and doing them in a group setting brings an additional bonus for overall health.
Overdoing any task, whether it be weight training or sitting at the computer for too long, can overtax the muscles as well as the brain.

Amoxicillin is a commonly prescribed broad-spectrum antibiotic.
Chart: The Conversation, CC-BY-ND
Counterintuitively, social media can make you feel more bored and lonely.
Talking about what you’ve read can add a social dimension to what can be a solitary activity. 
Women and people of color who experience cardiac arrest are less likely to receive CPR.

Mushrooms containing psilocybin.Photo credit:
Woman undergoing cancer treatments looks out the window.Photo credit:
Friend and patient on a walk.Photo credit: