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2 New Omicron Subvariants Being Tracked

Wed Apr 13 , 2022
April 12, 2022 The World Health Organization is analyzing a few dozen cases of two new sub-variants of the Omicron strain to determine how infectious and dangerous they might be, according to Reuters. The agency said it added BA.4 and BA.5 to its monitoring list because of their “additional mutations […]
2 New Omicron Subvariants Being Tracked