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US Vaccine Policy
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February 2026
Feb 18 FDA Considers Moderna's Flu Vaccine After Approval Dispute
November 2025
Nov 04 Pfizer vaccine sales drop due to reduced government recommendations
September 2025
Sep 19 ACIP panel updates vaccine recommendations and removes MMRV from approved list
Sep 19 ACIP committee votes on hepatitis B and MMRV vaccine recommendations
Sep 19 Former CDC director criticizes vaccine decisions lacking scientific evidence
Sep 19 CDC advisory panel votes against recommending prescription for Covid vaccine
Sep 19 CDC delays hepatitis B vaccine vote amid new MMRV recommendations
Sep 17 Former CDC director fired for resisting vaccine policy pressure
Sep 17 Former CDC director accuses RFK Jr. of political pressure over vaccine panel
May 2025
May 31 FDA approves Moderna's lower-dose COVID-19 vaccine for high-risk individuals
August 2024
Aug 30 FDA approves Novavax and other updated COVID vaccines ahead of respiratory surge
August 2023
Aug 26 Biden seeks additional funding for new coronavirus vaccine
Aug 25 CDC advises waiting for updated COVID-19 vaccines until September
Aug 20 Biden administration urges Americans to get new COVID-19 boosters
January 2023
Jan 04 Anti-vaxxers exploit Damar Hamlin's cardiac arrest for misinformation
November 2022
Nov 04 Pfizer bivalent booster shows stronger immune response against omicron variants
September 2022
Sep 26 Pfizer seeks FDA approval for Covid-19 booster for children aged 5 to 11
July 2022
Jul 29 U.S. delays second booster shots for all until updated vaccines ready
Jul 29 US government purchases Moderna vaccine for fall booster campaign
Jul 21 CDC approves Novavax Covid vaccine for emergency use
Jul 18 FDA authorizes Novavax vaccine as new option for COVID-19
Jul 13 FDA authorizes Novavax's COVID-19 vaccine for emergency use
December 2021
Dec 20 Israeli study shows Pfizer booster offers protection against Omicron
Dec 20 Moderna reports significant boost in omicron protection with new booster
Dec 17 Pfizer adds third dose to COVID vaccine trial for children under 5
Dec 17 FDA approves Pfizer-BioNTech booster for 16- and 17-year-olds
Dec 17 CDC recommends mRNA vaccines over Johnson & Johnson due to blood clot risks
Dec 16 CDC recommends other vaccines over Johnson & Johnson's due to blood clot risk
Dec 15 Study shows Pfizer and Moderna vaccines less effective against delta in elderly
Dec 15 Pfizer vaccine shows 70 percent effectiveness against omicron hospitalizations
Dec 12 Pfizer vaccine shows improved effectiveness against Omicron with third dose
September 2021
Sep 28 BioNTech-Pfizer seeks emergency use approval for children's vaccine
Sep 28 CDC reports booster doses of Covid-19 vaccines had mild side effects
Sep 28 Pfizer-BioNTech submits vaccine data for children 5-11 to FDA
Sep 28 Pfizer delays approval of children's Covid-19 vaccine until November
Sep 28 Biden receives Covid booster shot as administration pushes vaccination rollout
Sep 27 Pfizer begins testing mRNA flu vaccine in clinical trial
August 2021
Aug 05 FDA aims to approve Pfizer's Covid-19 vaccine by early September
Aug 05 Novavax delays FDA emergency use authorization for Covid-19 vaccine
Aug 05 Moderna reports 93 percent efficacy for its COVID-19 vaccine six months post-second dose
June 2021
Jun 11 FDA orders recall of 60 million contaminated Johnson & Johnson vaccines
February 2021
Feb 25 FDA approves Pfizer vaccine storage at standard freezer temperatures
December 2020
Dec 24 Fauci outlines vaccination requirements for herd immunity
October 2020
Oct 15 White House endorses controversial herd immunity strategy for COVID-19
September 2020
Sep 23 Dr. Fauci challenges Rand Paul's herd immunity claims during Senate hearing
October 2010
Oct 12 U.S. Supreme Court weighs vaccine manufacturer liability