Medical News Today: Childhood flu, birth year predicts immunity in adulthood https://t.co/L5Ad7MHU2p

Medical News Today: Childhood flu, birth year predicts immunity in adulthood http://pic.twitter.com/L5Ad7MHU2p

— Rollators & Walkers (@RollatorsWalker) November 11, 2016

from Twitter https://twitter.com/RollatorsWalker

November 11, 2016 at 05:13PM