When the omicron BA.4/BA.5 variants were circulating, Americans who received an updated COVID-19 vaccine were 14 times less likely to die than those who received no vaccine and five times less likely to die than those who received the original monovalent vaccine, according a study released today by the Centers for Disease Control and Prevention. The updated vaccine particularly increased protection for people aged 65 and older, CDC said. For best protection against severe illness and death, everyone aged 6 months and older should receive a bivalent booster dose at least two months after their COVID-19 primary series or last monovalent booster dose, CDC said.

In other news, CDC today released 2023 immunization schedules for children and adults, which include the COVID-19 primary vaccine series and links to the latest guidance on booster dose vaccination.

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The Department of Health of Human Services Aug. 21 issued a request for information seeking feedback on immunization categories within the Aug. 10 executive…
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For the 2025-2026 school year, exemptions from one or more vaccines among U.S. kindergartners was at 4.2%, increasing from 3.6% for the previous school year,…
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A study published Aug. 5 by Nature found that COVID-19 infection can reactivate dormant, chronic viruses such as Epstein-Barr and cytomegalovirus. The study…
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The Department of Health and Human Services June 30 announced it will terminate emergency use authorization declarations for certain drugs and medical devices…
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Centers for Medicare & Medicaid Services Administrator Mehmet Oz, M.D., and CMS Deputy Administrator and Director of Medicaid and CHIP Dan Brillman sat…
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Flu and COVID-19 vaccination rates among all health care workers for the 2024-25 respiratory virus season was 76.3% and 40.2%, respectively, according to a…