Researchers confirmed two cases of BA.2, a sub-lineage of the omicron variant, through sequencing at the University of Texas Southwestern on Thursday.
Scientists discovered the sub-lineage in December, shortly after the original omicron lineage, called BA.1, was identified. Recent spread of the sub-lineage led the U.K. Health Security Agency to designate BA.2 as “under investigation.”
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Source: The Dallas Morning News