virus covid-19

What exactly is a variant of COVID-19 and where are they spreading around the world?

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A little over a year ago the world was introduced to what would soon become a very out of control and very deadly virus -- COVID-19.

Fast forward a year and we’re now dealing with new variants that are keeping scientists and health professionals busy. Viruses constantly change through mutation, and new variants of a virus are expected to occur over time, the Center for Disease Control said. [TRENDING: Video shows deputy Tasing student | How to get the vaccine in Fla. | NASA tests new moon rocket] Researchers say that sometimes new variants of a virus can emerge and disappear.

Other times, new variants emerge and stick around. The CDC said the virus that causes COVID-19 is a type of coronavirus, a large family of viruses.

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