From the PBS Newshour on Oct. 15:
Dr. Celine Gounder:
Well, think of it like maybe a mug shot of a criminal. If you have two different photographs, one from the front, one from the side, you have a better chance of recognizing that person out in public than if you only had one snapshot.
And, similarly, these vaccines give your immune system different ways of looking at the virus. And so your immune system has a better shot at recognizing it down the line.
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