Virus sequencing data shows that a Mu case was reported in Nebraska recently, meaning the variant has now been detected all across the U.S.
"Most mutations are inconsequential or make the virus less infectious and hence why they fizzle out. Other mutations may make the virus have certain advantages that make it more likely to spread and cause illness."
The viruses that end up with these advantages may end up out-competing the others due to being able to spread faster or being harder to kill via vaccines or natural immunity., for example, has the advantage of being very transmissible and it is also known to pose some resistance to vaccines. COVID variants can be expected to emerge for as long as the virus is able to spread between people. For this reason, the CDC states that the best way to slow the emergence of new variants is to reduce the spread of infection, such as by getting a vaccine.
Lab workers bag a biological sample at a COVID testing site in Dubai in April 2020. The Mu variant of COVID has been detected all across the U.S.
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