subvariants

Vaccine Makers to Update Boosters to Target Omicron Subvariants

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Vaccine Makers to Update Boosters to Target Omicron Subvariants

By Steven Reinberg and Robin Foster HealthDay Reporters THURSDAY, June 30, 2022 (HealthDay News) — The U.S. Food and Drug Administration announced Thursday that it has asked vaccine makers to update their COVID-19 booster shots to target the Omicron subvariants known as BA.4 and BA.5. The two highly contagious subvariants now account for more than … Read more

2 New Omicron Subvariants Being Tracked

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2 New Omicron Subvariants Being Tracked

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 that need to be further … Read more