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Coronavirus Variants Can't Survive on Speed Forever - By Katherine J. Wu

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Susan Lee Schwartz
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Humanity’s collective immunity to the virus is growing, which means the next variants we encounter might be better off taking a tack that relies a lot more on stealth. There’s a tipping point when immune evasion becomes a bigger fitness advantage than transmission. No one yet knows exactly where that tipping point is, just that we will probably, eventually, collide with it.This transition will mark a new stage in our extended parlay with SARS-CoV-2. Viruses depend intimately on their hosts, & the global population no longer looks or acts as it did when this one was a fresh threat. A large fraction of us, especially in vaccine-wealthy countries such as the US, now have some degree of immunity, simultaneously suppressing the pathogen’s ability to pass among us & pressuring it to circumvent those shields. Our defenses are upping the ante for the virus. The virus will likely rise to meet it.

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I began teaching in 1963,; Ba and BS in Education -Brooklyn College. I have the equivalent of 2 additional Master's, mainly in Literacy Studies and Graphic Design. I was the only seventh grade teacher of English from 1990 -1999 at East Side (more...)
 

Related Topic(s): Coronavirus; Immunity; Viruses, Add Tags
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