2 years into the pandemic, burning questions remain about COVID-19 — and how we fight it - CBC News

Over the course of the COVID-19 pandemic, scientists have learned a lot about how this coronavirus operates. But burning questions remain over how it will evolve long-term, where it will show up next and how humanity can fight back against this still-mysterio…

In early 2020, as Dr. Samira Mubareka was following global updates on a strange new virus first reported in China, people with pneumonia-like symptoms started showing up in her hospital in Toronto. … [+10418 chars]

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