President Biden announces a National Month of Action to vaccinate 70 percent of U.S. adults by July 4; Moderna applies for FDA approval of its vaccine.

FDA lengthens the refrigerator storage time for the Pfizer COVID-19 vaccine. A new CDC site aggregates state and local COVID-19 funding opportunities. The Department of Health and Human Services allocates $4.8 billion to the HRSA COVID-19 Uninsured Program.

A CDC brief updates transmission methods; Pfizer applies for FDA approval of its vaccine; CMS increases the Medicare payment for monoclonal antibodies.

CDC and FDA lift the pause on Janssen vaccine administration after blood clot reports. Data show COVID-19 patients have long-term health needs.

Everyone in the United States ages 16 and older is now eligible for a COVID-19 vaccine; CDC's advisory committee will meet April 23 to discuss the Janssen vaccine pause.

HHS and CDC launch a nationwide grassroots vaccine promotion network; CDC issues new guidance on travel, cleaning, and disinfection.

FDA alerts providers about monoclonal antibody–resistant SARS-CoV-2 variants; a new study examines vaccine rates in counties where residents experience a high number of social risk factors.

FDA granted an emergency use authorization for the one-dose Janssen COVID-19 vaccine and an at-home COVID test; a multi-agency FAQ document addresses COVID-19 health coverage.

Janssen applied for emergency use authorization of its COVID-19 vaccine; a CDC report shows reporting gaps in ethnic and racial data of vaccine recipients.

CDC announces target groups for phases 1b and 1c of COVID-19 vaccine allocation; a new brief recommends strategies for building vaccine trust.

FDA issues an emergency use authorization for the Moderna vaccine and an at-home antigen test; a CDC committee votes on allocation recommendations.

FDA authorizes the Pfizer COVID-19 vaccine for emergency use; HHS expands hospital COVID-19 data reporting requirements to include therapeutic data.

CDC recommends groups to prioritize in vaccine distribution and revises antigen testing guidance.

Moderna applied for emergency use authorization for its COVID-19 vaccine; CDC issued ethical vaccine application principles and updated face mask guidance for health care workers.