Even if you think you only have allergies, the common cold or flu, it's important to follow the guidance related to COVID-19. Since they are different, it's possible to have more than one at the same time.
Self-isolate at home if you have any of the following symptoms that are new or getting worse, even if you're fully vaccinated against COVID-19, or previously tested positive for COVID-19.
COVID-19 symptoms include:
Less common COVID-19 symptoms include the following. You should stay home until symptoms are improving.
Learn about guidance for self-isolation.
See testing for important information on what your results mean, including what to do if you test negative for COVID-19.
It's possible to be reinfected with COVID-19. Even if you previously tested positive for COVID-19, if you're experiencing COVID-19 symptoms, follow the guidance for self-isolation and get tested if you can access a test as you may be infected again.
The best protection is staying up to date with all recommended doses of COVID-19 and using layers of protection.