zone2627.org
A Leap Forward in Ending Polio Now and Forever - Rotary Zone 26 & 27
The world is fast approaching the largest globally synchronized project in the history of vaccines. Between 17 April and 1 May 2016, every country in with world using the oral polio vaccine (OPV) will switch from the trivalent vaccine (tOPV), which protects children against all three types of the virus, to the bivalent vaccine, which …