Tracking the Coronavirus Vaccines That Will End the Pandemic

The biggest vaccination effort in history has begun. This week, the U.K. was first to clear the use of a new shot from Pfizer Inc. and BioNTech SE. The U.S. will likely do the same, and a separate vaccine from Moderna Inc. is close behind. By the end of 2020, tens of millions of people could be inoculated. Next year: billions more.

Bloomberg is tracking nine of the most promising vaccines around the globe, from national procurement deals to shots in patients’ arms. By our count, at least 7.85 billion doses have already been allotted.

It’s enough to cover half the world’s population (most vaccines use two doses), if the shots were distributed evenly. That, however, isn’t likely. Rich countries have hedged their bets with extensive supply deals, and ultra-cold storage requirements make some vaccines difficult to deliver to far-flung places.

Other countries have struck their own paths: China and Russia authorized their vaccines in July before they’d been fully tested. Including those, a total of five vaccines are now available in limited quantities, in three countries.

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