Ask The Doctors: Delta Variant Continues To Spread

The Delta variant continues to spread and now makes up a quarter of all New England cases. Where is the Delta variant the biggest threat, and could surges of it lead to even more dangerous, contagious variants? To answer our questions on viruses, vaccines, and variants, we're joined by Dr. Cassandra Pierre, acting hospital epidemiologist and an infectious diseases physician at Boston Medical Center, and Dr. Sharon Wright, chief infection prevention officer for Beth Israel Lahey Health.