Infectious disease experts warn colder weather could again spike the spread of COVID, though vaccines will soften the blow. ------------------------------------- Newsy is your source for news and analysis covering the top stories from around the world. With persistent curiosity and no agenda, we strive to fuel meaningful conversations by highlighting multiple sides of every story. It’s news with the why. Join our newsletter at http://bit.ly/2q1tepr See more at http://www.newsy.com/ Like Newsy on Facebook: http://www.facebook.com/newsy/ Follow us on Twitter: http://www.twitter.com/newsy