New Lyme disease vaccine for humans being developed

New Lyme disease vaccine for humans being developed

A new vaccine for Lyme disease is in the works, and researchers are seeking thousands of volunteers in the U.S. and Europe to test it out. Watch The National live on YouTube Sunday-Friday at 9 p.m. ET Subscribe to The…

Bear follows hiker along Mount Rainier path

Bear follows hiker along Mount Rainier path

Hiker gains a furry follower on trip to Mount Rainier National Park, Washington, as a black bear casually joins his route. SUBSCRIBE to ABC News on YouTube: Latest updates: Watch FULL EPISODES on Hulu: #abcnews #bears #hiking #washington