Dr. Shira Doron, an epidemiologist at Tufts Medical Center, explains why colder temperatures and more indoor activities are potential reasons for a second COVID-19 wave this fall and winter.
Is Mass. testing where it needs to be with second surge potential?
Dr. Shira Doron says the state still has some work to do to be positioned well in case of a second COVID-19 surge.
WCVB