The Science Behind Why New Covid Variants Are Spreading Faster

Here is the science behind why all the new Covid-19 variants we’ve been hearing about for the past few weeks might be spreading faster.

As highly transmissible coronavirus variants sweep across the world, scientists are racing to understand why these new versions of the virus are spreading faster, and what this could mean for vaccine efforts. New research says the key may be the spike protein, which gives the coronavirus its unmistakable shape.