Why herd immunity is elusive; tips for new hikers; what testing positive for HIV means: Upstate Medical University's HealthLink on Air for Sunday, June 20, 2021

Published: June 18, 2021, 1:17 p.m.

Interviews with infectious disease specialist Stephen Thomas, MD, associate professor of physical therapy education Carol Sames, PhD, and infectious disease chief Elizabeth Asiago-Reddy, MD