The puzzling unknowns of COVID-19

The puzzling unknowns of COVID-19

By CBC

Until about 5 months ago, no one had heard of COVID-19. And, despite the overflow of information and research since then, there is much we still don’t know about the virus itself and the disease it causes. Today on Front Burner, we talk to special pathogens expert Dr. Syra Madad about some of the things we don’t know about COVID-19 and why this is such an unprecedented crisis.
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