Doctor discusses how and why vaccinations work

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FILE – Pfizer COVID-19 vaccines sit ready for use at a Dallas County Health and Human Services drive up vaccine site in Mesquite, Texas, Nov. 30, 2021. While all eyes are on the new and little-understood omicron variant, the delta form of the coronavirus isn’t finished wreaking havoc in the U.S. There is much that is unknown about omicron, including whether it is more contagious than previous versions, makes people sicker or more easily thwarts the vaccine or breaks through the immunity that people get from a bout of COVID-19. (AP Photo/LM Otero, File)

(WTNH) – Vaccinations are nothing new. They have prevented deadly diseases and kept conditions like the seasonal flu from being as dangerous and deadly as they could be.

Dr. Sten Vermund, the Dean of Yale School of Public Health, is discussing just how vaccinations work.

Watch the video above for the full interview.  

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