Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
To maximize protection from the Delta variant and prevent possibly spreading it to others, get vaccinated as soon as you can and wear a mask indoors in public if you are in an area of substantial or high transmission.
UPDATE
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.

Ensuring COVID-19 Vaccine Safety in the US

Ensuring COVID-19 Vaccine Safety in the US
vaccine vial

Vaccine Safety and Monitoring

  • COVID-19 vaccines are safe and effective. 
  • While COVID-19 vaccines were developed rapidly, all steps have been taken to ensure their safety and effectiveness.
  • Millions of people in the United States have received COVID-19 vaccines under the most intense safety monitoring in U.S. history.
  • CDC recommends you get a COVID-19 vaccine as soon as you can.

Is the vaccine safe?
Have vaccines caused any health problems?

vaccine vial

Safety Monitoring Systems