What should I do if I’m exposed to COVID-19?

The CDC recommends that anyone who comes into close contact with someone who has COVID-19 should get tested five days after exposure, or sooner if you develop symptoms. The CDC also recommends different courses of action after exposure, depending on vaccination status and timeline:
If you are unvaccinated, or if you are eligible to be boosted and have not yet received your booster, the CDC recommends that you quarantine alone and away from others for five days. After a five day quarantine period, you should wear a mask around others for five additional days, and get tested for COVID-19.
If quarantine is not possible, it is critical to wear a well-fitting mask at all times when around others for 10 days after exposure. If you develop symptoms at any point within ten days after exposure, get a test and stay home.
If you have been boosted, or have been fully vaccinated and are not yet eligible to be boosted, the CDC recommends that you wear a mask around others for 10 days, but you need not quarantine unless you develop symptoms.