For months, health departments in Pennsylvania, Delaware, and New Jersey have promoted their COVID-19 alert apps.
How well do they work at stopping transmission? WHYY’s Alan Yu looked into it.
(Original air-date: 3/10/21)
For months, health departments in Pennsylvania, Delaware, and New Jersey have promoted their COVID-19 alert apps.
How well do they work at stopping transmission? WHYY’s Alan Yu looked into it.
(Original air-date: 3/10/21)