Take a trip around the world with CBC Radio's As It Happens. Hear from the people at the centre of the stories of the day — from the complex to the weird and wacky.
Manage episode 291811681 series 2434974
While Dr. Strang hopes Nova Scotia will reach herd immunity in June, a New York Times article suggests some communities may never reach that milestone. We ask an immunology professor what it means to have or not have herd immunity.