A mutation shows why the coronavirus is such a formidable foe

All living organisms mutate and adapt to maximize survival in their ecologic niche. For months, scientists have been looking into whether the novel coronavirus -- known as SARS-CoV-2 -- is mutating and becoming more transmissible or more lethal. Recent evidence points to a preliminary answer to half the question: yes, a study has found that the virus has mutated and the dominant strain today is now capable of infecting more human cells. But the scientists say more research is needed to show whether this changed the course of the pandemic, and it remains unclear whether this mutation is more lethal.

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