All Sides with Amy Juravich What You Should Know about the H1N1 Flu Vaccine ÐÇ¿ÕÎÞÏÞ´«Ã½ 89.7 NPR News | By admin Published November 4, 2009 at 11:00 AM EST Email Listen • 0:00 The H1N1 flu vaccine: How it is made? How safe, effective is it? Why is supply limited? What groups take propriety? With Nationwide Children’s Hospital medical director of epidemiology Dr. Dennis Cunningham, M.D.