SciShow News explores how a diseases that was officially eliminated in the U.S. has made a sudden comeback.
Hosted by: Hank Green
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow
Looking for SciShow elsewhere on the internet?