What We Know about Omicron

Spread

The Omicron variant likely will spread more easily than the original SARS-CoV-2 virus. CDC expects that anyone with Omicron infection can spread the virus to others, even if they are vaccinated or don’t have symptoms.

Vaccines

Current vaccines are expected to protect against severe illness, hospitalizations, and deaths due to infection with the Omicron variant. However, breakthrough infections in people who are fully vaccinated are likely to occur.

Treatments

Scientists are working to determine how well existing treatments for COVID-19 work. Based on the changed genetic make-up of Omicron, some treatments are likely to remain effective while others may be less effective.

Tools to Fight Omicron

Vaccines

• COVID-19 vaccines are highly effective at preventing severe illness, hospitalizations, and death

• CDC recommends that everyone 5 years and older protect themselves from COVID-19 by getting fully vaccinated.

• CDC recommends that everyone ages 16 years and older get a booster shot after completing their primary COVID-19 vaccination series. You are eligible for a booster at 5 months after completing Pfizer-BioNTech primary series, 6 months after completing Moderna primary series, and 2 months after the initial J&J/Janssen vaccine. Individuals ages 16-17 are only eligible for the Pfizer-BioNTech COVID-19 vaccine.

Masks

• CDC continues to recommend wearing a mask in public indoor settings in areas of substantial or high community transmission, regardless of vaccination status.
• CDC provides advice about masks for people who want to learn more about what type of mask is right for them depending on their circumstances.

Testing