Joe Raedle/Getty Images Uncovering and explaining how our digital world is changing and changing us.
As vaccines are distributed around the world, an effective end to the Covid-19 pandemic seems to be on the horizon. There’s a new vaccine from Johnson & Johnson now being delivered, with supplies soon to be boosted by a deal with the pharmaceuticals giant Merck. President Biden now says the United States will have enough doses for every American by the end of May. But still, many still want to know why there aren’t more shots to go around right now.
Here’s part of the answer: We’re still racing to make a special type of lipid, a relatively unknown but critical component of the vaccines being manufactured by Moderna and Pfizer/BioNTech. These vaccines use messenger RNA, the genetic component commonly known as mRNA that instructs cells to make proteins, which in turn teach the human body how to fight the virus that causes Covid-19.
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