WHO investigating new COVID-19 ‘Mu’ variant that researchers claim could be resistant to vaccines

The World Health Organization (WHO) launched an investigation into the latest COVID-19 variant: Mu.

Researchers also refer to the variant as B.1.621 and suggest it may be resistant to vaccines. “The Mu variant has a constellation of mutations that indicate potential properties of immune escape,” according to the investigation. If true, the research mirrors previous assumptions regarding the Delta variant. For instance, Pfizer is requesting approval from the Food and Drug Administration (FDA) to distribute a third COVID-19 vaccine dose.

The pharmaceutical company suggests a third dose within 12 months may increase immunity and protect against the newest variants. Dr. Mikael Dolsten, Pfizer’s chief scientific officer, said early studies show antibody levels jump five to tenfold after a third dose. 

The WHO said, “Although the global prevalence of the Mu variant among sequenced cases has declined and is currently below 0.1%, the prevalence in Colombia (39%) and Ecuador (13%) has consistently increased.”

The agency went on to suggest genetic sequencing may increase the variant’s spread internationally. As cases spike due to new variants like Mu and Delta, the vaccine market grows, the economy is threatened, and COVID-19 policies are reinstated. 



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Antoinette is a community college student in Sacramento, California. She is a Politics Editor at Fact Based America, a correspondent for Campus Reform, and a student journalist. She previously worked for Turning Point USA as a High School Coordinator.

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