There’s a thing called herd immunity which is always a fallback option when you are dealing with a new pathogen. You see our immunity comes from memory, that is, the ability of the immune system to remember previous infection pathogens and blocking that accordingly. Now, for a new virus, nobody has got it so the virus has a faster infection rate and it doesn’t stop unless a substantial number of people have immunity, a memory of it. The Senior Biomedicine Editor of MIT Technology Review, Antonio...
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