Guidance for Fully Vaccinated People - CDC

To maximize protection from the Delta variant and prevent possibly spreading it to others, wear a mask indoors in public if you are in an area of substantial or high transmission.

Who Is Eligible for a COVID-19 Vaccine Booster Shot? - CDC

COVID-19 Vaccine booster shots are available for the following Pfizer-BioNTech vaccine recipients who completed their initial series at least 6 months ago.

Myths and Facts about COVID-19 Vaccines - CDC

It can be difficult to know which sources of information you can trust. Before considering vaccine information on the Internet, check that the information comes from a credible source and is updated on a regular basis.

Science Brief: COVID-19 Vaccines and Vaccination - CDC

Updates from the CDC on any recent changes, data, key points to keep in mind, Vaccine efficacy and effectiveness, emerging SARS-CoV-2 viral variants, and clinical trials and study information.