Vaccine vials are being carefully stored ahead of being used, to make sure as little goes to waste as possible.
History tells us that mass vaccination campaigns are usually messy, while elsewhere, lower-income countries are turning to China, Russia and India for vaccines.
Australia is set to get the green light to roll out the Pfizer vaccine any day now. There is a complex process behind this.
Health-care workers wait in line at a COVID-19 vaccine clinic in Toronto on Jan. 7, 2021.
THE CANADIAN PRESS/Nathan Denette
Rollout of COVID-19 vaccines has begun. But getting the jab doesn't mean abandoning masks, distancing and handwashing. Here's why the current preventive measures must continue post-vaccine.
Elementary students initially received polio vaccines at school.
PhotoQuest/Archive Photos via Getty Images
Massive vaccine distribution efforts take a lot of coordination. The rollout of the Salk polio vaccine in the US in 1955 holds lessons for those delivering COVID-19 shots today.
Dryvax, smallpox vaccine with bifurcated needle.
James Gathany Content Providers/CDC Public Health Image Library
Too much hope is being pinned on the vaccine alone to get us out of the current pandemic. But 'low-tech' solutions are needed, too.
Seniors in Fort Myers, Fla. wait for their COVID-19 vaccinations. At this site, 800 doses of vaccine were available.
Octavio Jones via Getty Images
The shipment of goods to suppliers has become technologically sophisticated. Delays in getting out the COVID-19 vaccine to people show that the breakdowns come down to something more basic.
Australia's expedited plan to start dishing out COVID jabs in mid-late February will call for NASA-like logistical organisation. And ideally, no more clusters of infections to distract frontline workers.