The AstraZeneca COVID-19 vaccine has been hailed as the world’s vaccine — it’s inexpensive to produce and doesn’t need super-cold storage like the mRNA vaccines do. It’s been approved in countries around the globe, from the U.K. to Mexico to Australia.
At first, clinical trial data indicated that the vaccine had an efficacy of nearly 80 percent, though a small study of about 2,000 people showed it to be considerably less effective against the variant first identified in South Africa. But that hasn’t been seen as a reason to keep the vaccine from the rest of the world. And so far, tens of millions of doses have been administered.
Nevertheless, the vaccine has still not been approved in the U.S.
Note from Ken Feltman: I have received two doses of the AstraZeneca vaccine.