Northwell Health's Deputy Chief Medical Officer & Chief Quality Officer, Mark Jarrett, MD, discusses how vaccines work, the common misconceptions and what you should know about a future COVID-19 vaccine. You can also learn more at Northwell.edu/prepared Northwell Health is New York State’s largest health care provider and private employer, with 23 hospitals, nearly 800 outpatient facilities and more than 14,200 credentialed physicians. We care for over two million people annually in the New York metro area and beyond, thanks to philanthropic support from our communities. Our 72,000 employees — 17,000-plus nurses and 4,500 employed doctors, including members of Northwell Health Physician Partners — are working to change health care for the better. We’re making breakthroughs in medicine at the Feinstein Institutes for Medical Research. We're training the next generation of medical professionals at the visionary Donald and Barbara Zucker School of Medicine at Hofstra/Northwell and the Hofstra Northwell School of Graduate Nursing and Physician Assistant Studies. Visit https://www.northwell.edu/ Subscribe to Northwell Health’s YouTube http://bit.ly/2wPz7on or head to our channel null The Well - https://thewell.northwell.edu/ Facebook – https://www.facebook.com/northwellhealth Twitter - https://www.twitter.com/northwellhealth Instagram - https://www.instagram.com/northwellhealth LinkedIn - https://www.linkedin/northwellhealth