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May 3, 2023 · Booster doses after the primary series restored protection back to levels achieved just after the primary vaccination, but this protection waned too, at a rate similar to that after the primary ...
May 17, 2023 · That vulnerability is a growing concern as the bivalent boosters first offered last fall are already showing a decline in effectiveness. In April, a study published in the New England Journal of Medicine showed that the bivalent booster offered last fall provided added protection against severe illness and death from COVID-19, but it waned over ...
Sep 12, 2022 · Both companies are running clinical studies to test their BA.4/BA.5 bivalent booster and say they will report findings by the end of the year. Pfizer is also testing its BA.1-specific booster in children 6 months to 5 years old, and Moderna plans to submit data on its BA.1 bivalent booster in people 6 to 17 years old in mid-September.
Sep 1, 2022 · How long do you have to wait after receiving your last booster (specifically, either the third or fourth dose of the original mRNA COVID-19 vaccine) to get a bivalent vaccine? AD: A firm answer awaits FDA/CDC guidance, but experts suggest waiting at least one to two months if you are not at high risk of serious illness.
Jun 15, 2023 · As of May 6, 2023, COVID-19–associated hospitalization rates were highest among adults aged ≥65 years (9.5 per 100,000 persons). ¶ Bivalent booster doses are shown to provide the highest protection against hospitalization among adults, with protection sustained through at least 179 days against critical outcomes, including intensive care unit admission or in-hospital death (4).
Nov 30, 2022 · New data shows the updated bivalent COVID vaccines provide additional protection against COVID-19. The updated boosters are now considered to be more effective against current Omicron subvariants ...
