Technology

A pharmacy technician prepares a Pfizer-BioNTech Covid-19 vaccine at a University Hospital Network (UHN) vaccination clinic in Toronto, Ontario, Canada, on Tuesday, Dec. 15, 2020. UHN is one of the two sites responsible for piloting the vaccination rollout across Ontario. (Cole Burston/Bloomberg /Getty Images)

A call to arms

Inside Canada’s impossibly high-stakes rush to lock down tens of millions of doses of the most sought-after product on Earth