It's been about six months since COVID vaccinations started being widely administered around the world. In that time, about 1.7 billion doses have been administered. This article from Nature summarizes what we've learned about the vaccines and their effectiveness in that times. As usual with Nature articles, it's solidly researched and worth the time to read.
“It’s absolutely astonishing that this has happened in such a short time — to me, it’s equivalent to putting a person on the Moon,” says paediatric infectious-disease specialist Cody Meissner at Tufts University School of Medicine and Tufts Children’s Hospital in Boston, Massachusetts. “This is going to change vaccinology forever.”
Nature looks at what lessons have emerged during the first six months of COVID-19 vaccinations, as well as what questions still linger. Overall, the vaccine results have been extremely promising — even better than many had hoped — but researchers have concerns about emerging variants and the potential for immune responses to wane.
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