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  2. Apr 25, 2024 · Among adults aged ≥50 years who were eligible to receive a second original monovalent mRNA COVID-19 vaccine booster dose, VE against COVID-19–associated emergency department and urgent care encounters during the SARS-CoV-2 Omicron BA.2/BA.2.12.1 period ≥120 days after the third dose was 32% but increased to 66% ≥7 days after the fourth ...

  3. Apr 19, 2024 · The FDA authorized an updated version of a vaccine Novavax developed to target the XBB.1.5 strain. Individuals 12 and older previously vaccinated with a COVID vaccine (and who have not already been vaccinated with a recently updated mRNA COVID vaccine) are eligible to receive one dose; unvaccinated individuals can receive two doses.

  4. May 3, 2024 · CDC recommends updated COVID-19 vaccine for fall/winter virus season. Centers for Disease Control and Prevention. Overview of COVID-19 vaccines. Pfizer. Pfizer and BioNTech announce phase 3 trial data showing high efficacy of a booster dose of their COVID-19 vaccine. Zimmermann P, Curtis N. Factors that influence the immune response to vaccination.

  5. May 1, 2024 · Patients 5 years of age and older who have received 1 or more doses of any COVID-19 vaccine: Pfizer-BioNTech COVID-19 vaccine (supplied in a vial with a blue cap and a label with a blue border): 5 to 11 years of age—Given as a single dose at least 2 months after receiving a COVID-19 vaccine. Patients who have a weak immune system: 6 months to ...

  6. Apr 26, 2024 · Apr 26, 2024 - 02:11 PM. Adults age 65 and older are encouraged to receive an updated dosage of the COVID-19 vaccine, the Centers for Disease Control and Prevention announced April 25. The update provides protection against the JN.1 and other circulating variants of the virus, and should be administered at least four months following the ...

  7. 6 days ago · A major clinical trial has found that an additional COVID-19 vaccine dose led to the majority of clinically extremely vulnerable people mounting defensive antibodies against COVID-19.

  8. Apr 19, 2024 · The Pfizer/BioNTech vaccine is the first COVID-19 vaccine authorized for use in the U.S. and the first to be fully approved by the FDA. The companies released promising interim results from a ...

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