What you need to know about COVID-19 variant

The delta variant, a more contagious and deadly strain of the COVID-19 virus, is spreading quickly throughout Indiana and is now the most dominant strain. 

Here’s what you need to know:

What is a variant?

In general viruses mutate as they spread. Some of these mutations fizzle out and others become more prevalent for various reasons, according to the Indiana Department of Health.

The United States and Indiana have seen a number of variants of the virus that causes COVID-19 in the past 16 months. At first, the most common variant was the alpha variant, first identified in the United Kingdom, known as the B.1.1.7 variant.

More recently the delta variant, first identified in India and known as the B.1.617.2 variant, has become more dominant.

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