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BA.2 believed to be dominant COVID strain in L.A. CountyApril 7, 2022 -
COVID sub-variant 'BA.2' increasing in L.A. CountyMarch 25, 2022 -
Be COVID cautious during L.A. Marathon festivities, L.A. health director saysMarch 18, 2022 -
How are new variants navigated? Expert weighs in on the monitoring process, future of vaccine boostersFebruary 15, 2022 -
UK Health officials on alert for 'Deltacron,' hybrid of 2 COVID variantsFebruary 12, 2022 -
Dr. Fauci warns of 'more ominous' strains of COVID-19January 17, 2021