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    Mu variant of COVID: What is it? Where is it spreading? Do vaccines work? Here’s what to know about the new c – NJ.com

    The Mu variant, also known as B.1.621, is a COVID-19 virus strain that was initially discovered in Colombia in January 2021, according to the World Health Organization (WHO).

    The WHO declared the strain a “variant of interest” and named it Mu on Aug. 30, 2021.

    Scientists say the variant is worth watching because of Mu’s prevalence in 39 countries and 49 states in the U.S.

    But a lot still is unknown about the Mu variant. It was not labeled a “variant of concern,” which only would happen if reliable data shows the variant is transmissible or worrying characteristics like the Delta variant.

    Here is what to know about the Mu variant of COVID-19.

    The Mu variant has spread to 49 states and Washington D.C. The exception is Nebraska.

    WHO officials said the Mu variant appeared in 39 countries, with sporadic outbreaks across Europe and South America.

    Although a lot about the Mu variant is unknown right now, initial studies suggest the strain is more resistant to antibodies from the vaccines currently on the market.

    Related stories about variants:

    The Delta variant symptoms to look out for if you are fully vaccinated

    Lambda variant of COVID: Where is it? Do vaccines work against it? Here’s what to know

    What is the ‘Delta plus’ variant of COVID? Here’s what to know about the new virus strain

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    Katherine Rodriguez can be reached at krodriguez@njadvancemedia.com. Have a tip? Tell us at nj.com/tips.

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