I couldn’t agree more: Vaccines are one of the cheapest ways to save lives. via @UNICEF pic.twitter.com/akyq5adLco
— Bill Gates (@BillGates) April 22, 2014I couldn’t agree more: Vaccines are one of the cheapest ways to save lives. via @UNICEF pic.twitter.com/akyq5adLco
— Bill Gates (@BillGates) April 22, 2014