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COVID variant siblings show different levels of virulence

New research outlines key information about omicron's older variant sibling, alpha, which emerged late in 2020. It turns out that the mutation that birthed alpha in the first place is very similar to the one that created omicron, but with very different results for the severity of each one.

from Top Health News -- ScienceDaily https://ift.tt/351bZc1

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