About the Delta Variant: Vaccines continue to reduce a person’s risk of contracting the virus that cause COVID-19, including this variant. Vaccines are highly effective against severe illness, but the Delta variant causes more infections and spreads faster than earlier forms of the virus that causes COVID-19. Learn more about variants in the US.
If you are not fully vaccinated and aged 2 or older, you should wear a mask in indoor public places.
In general, you do not need to wear a mask in outdoor settings.
- In areas with high numbers of COVID-19 cases, consider wearing a mask in crowded outdoor settings and for activities with close contact with others who are not fully vaccinated.
When you are fully vaccinated
If you are fully vaccinated, you can participate in many of the activities that you did before the pandemic. Getting vaccinated prevents severe illness, hospitalizations, and death. Unvaccinated people should get vaccinated and continue masking until they are fully vaccinated. To maximize protection from variants and prevent possibly spreading the virus to others, fully vaccinated people should wear a mask indoors in public in areas of substantial or high transmission. With the emergence of variants, this is more urgent than ever. Learn more about what you can do when you have been fully vaccinated.
Learn more about COVID-19 vaccine myths and facts.