Noncitizen nonimmigrants must be fully vaccinated to travel by air to the US. Some categories of noncitizen nonimmigrants are excepted from the requirement but will need to fulfill other requirements.
CDC reports COVID-19 vaccination data online on COVID Data Tracker and in vaccination datasets.
CDC reports COVID-19 vaccination data online on COVID Data Tracker and in vaccination datasets. Timely and accurate reporting from jurisdictions provides the reliable data that can be reported by CDC to the public.
CDC recommends that moderately or severely immunocompromised people receive an additional dose of mRNA COVID-19 vaccine at least four weeks after a second dose of Pfizer-BioNTech COVID-19 vaccine or Moderna COVID-19 vaccine.
People Who Are Immunocompromised
COVID-19 vaccines are safe and effective. Millions of people in the United States have received COVID-19 vaccines, and these vaccines will undergo the most intensive safety monitoring in U.S. history. CDC recommends you get a COVID-19 vaccine as soon as you are eligible. Adverse events described on this page have been reported to the Vaccine Adverse Event Reporting System (VAERS).
people who are up to date with their vaccines are well protected from serious illness or other health outcomes.
People who have had 2 shots of Pfizer-BioNTech or Moderna vaccines may need to start receiving a COVID-19 booster shot 8 months after their second dose.
CDC recommends everyone ages 5 years and older get vaccinated against COVID-19. Everyone ages 12 years and older should also get a COVID-19 booster shot.
The Moderna COVID-19 vaccine is an mRNA vaccine that requires 2 shots, 28 days apart. Learn about safety data, efficacy, and clinical trial demographics.
A review of the week's key data from CDC's COVID Data Tracker, narrative interpretations, and visualizations.
The Pfizer-BioNTech COVID-19 vaccine is an mRNA vaccine that requires 2 shots, 21 days apart. Learn about safety data, efficacy, and clinical trial demographics.
Because COVID-19 is a new disease with new vaccines, you may have questions about what happens before, during, and after your appointment to get vaccinated. These tips will help you know what to expect when you get vaccinated, what information your provider will give you, and resources you can use to monitor your health after you are vaccinated.
Children and teens may have some side effects after getting their COVID-19 vaccine, but they should go away within a few days.
Kids 12 years of age and older can get the Pfizer-BioNTech COVID-19 vaccine to help protect against COVID-19. Get a vaccine for your child as soon as you can.
Although the vaccine supply is currently limited, CDC is working toward making vaccines widely available for everyone at no cost. Learn more about your state's plan.
Through continued safety monitoring, COVID-19 vaccination has been found safe for children and teens.
COVID-19 can make children and teens very sick and sometimes requires hospitalization. Help protect children ages 5 years and older by getting them vaccinated against COVID-19.
Learn about COVID-19 vaccination for children and teens with disabilities, and how to request accommodations at COVID-19 vaccination sites.
Answers to commonly asked questions about COVID-19 vaccines, including vaccine cost, availability, and types.