Where did coronavirus come from? And other covid-19 questions answered

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By Michael Le Page
, Jessica Hamzelou
, Donna Lu
, Graham Lawton
and Adam Vaughan

Nina Westervelt/Bloomberg Via Getty Images
 
We have now been living with SARS-CoV-2, the virus that causes covid-19, for the best part of a year. In that time, our knowledge has expanded dramatically, but there is still so much we don’t know – and even when we think we know things, the science can change fast.
On 24 September, we held a live Q & A event online for subscribers about the pandemic and were inundated with questions. Here, our reporters tackle some of the most common.
Transmission
How does the coronavirus spread through the air? Is aerosol transmission a possibility?
The coronavirus …

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