The flu vaccine is proven to reduce illness, hospitalization and even death -- so why do so many people choose not to get it? Pei-Sze Cheng has more on how the flu vaccine is made and why some are averse to it. NBC 4 New York on Twitter: 4.nbcny.com/kAuuwUN NBC 4 New York on Facebook: 4.nbcny.com/mbeh714 NBC 4 New York on Instagram: 4.nbcny.com/g5YlkcI NBC 4 New York on Youtube: 4.nbcny.com/iTUpy5e #Flu #FluShots #Influenza #Medicine