@BillGates: It’s amazing to think about the creative ways we’ve delivered vaccines over the years (even by dog sled, when necessary). Today, a startup called Zipline is even using delivery drones to reach the most remote parts of the world. https://t.co/ivkdFYc2j0 #VaccinesWork

http://twitter.com/BillGates

It’s amazing to think about the creative ways we’ve delivered vaccines over the years (even by dog sled, when necessary). Today, a startup called Zipline is even using delivery drones to reach the most remote parts of the world. https://t.co/ivkdFYc2j0 #VaccinesWork

— Bill Gates (@BillGates) April 30, 2019