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Experts say Omicron BA.2 subvariant hard to track
What specialists know about Omicron subvariant BA.2
As scientists monitor new omicron subvariant BA.2, here's what we know
COVID-19: What we know so far about Omicron's BA.2 subvariant
Medical Minute: Scientists Studying New Omicron Sub-Variant Called BA.2
BA.2 subvariant sparks uncertainty among virus experts
Hard-to-detect omicron offshoot BA.2 spreads rapidly in Europe | DW News
Health experts keep watch on Omicron subvariant BA.2 as study suggests higher severity
Expert Analysis Omicron Variant BA.2 As It Causes Surge In Europe
Doctors aren't fearful of BA.2 COVID-19 surge in the United States
Explaining the BA.2 subvariant of omicron
What to Know About the Latest Variant, BA.2
