For sure, when we're on the plane, when we're going through the airport buildings, when we're indoors, let's keep those masks on. We want to make this crisis end as soon as possible. — Dr. Leonard Marcus, Harvard T.H. Chan School of Public Health
For sure, when we're on the plane, when we're going through the airport buildings, when we're indoors, let's keep those masks on. We want to make this crisis end as soon as possible. — Dr. Leonard Marcus, Harvard T.H. Chan School of Public Health