IF YOU ARE FULLY VACCINATED
Find new guidance for fully vaccinated people.
If you are not vaccinated,
find a vaccine.
CDC has updated its guidance for people who are fully vaccinated.
See Recommendations for Fully Vaccinated People.
IMPORTANT UPDATE FOR SCHOOLS
CDC recommends schools continue to use the current COVID-19 prevention strategies for
the 2020-2021 school year.
Learn more
Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination.
Learn more
Find the latest information:
Aquatics FAQs
Recommendations for Fully Vaccinated People
COVID-19 Homepage
Aquatics FAQs
Recommendations for Fully Vaccinated People
COVID-19 Homepage
UPDATE
Getting vaccinated prevents severe illness, hospitalizations, and death. Unvaccinated people should get vaccinated and continue masking until they are fully vaccinated. With the Delta variant, this is more urgent than ever. CDC has updated guidance for fully vaccinated people based on new evidence on the Delta variant.
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.
Variants and Genomic Surveillance for SARS-CoV-2
Variants and Genomic Surveillance for SARS-CoV-2
![Variant Proportions image of multiple dark grey and light grey virus molecules](https://public4.pagefreezer.com:443/content/CDC%20Covid%20Pages/30-07-2021T14:07/https://www.cdc.gov/coronavirus/2019-ncov/images/variants/variants-cropped.png)
Genomic Surveillance
What is a variant?
Viruses constantly change through mutation, and new variants of a virus are expected to occur over time.
Research and Selected Publications
- MMWR: First Identified Cases of SARS-CoV-2 Variant B.1.1.7 in Minnesota — December 2020–January 2021
- MMWR: Detection of B.1.351 SARS-CoV-2 Variant Strain — Zambia, December 2020
- MMWR: Emergence of SARS-CoV-2 B.1.1.7 Lineage — United States, December 29, 2020–January 12, 2021
- Science Brief: Emerging SARS-CoV-2 Variants