How Long After Exposure To Covid Are You Contagious

COVID-19Common questionWhen do you start being contagious with COVID-19?A person with COVID-19 is considered infectious starting 2 days before they develop symptoms, or 2 days before the date of their positive test if they do not have symptoms.

COVID-19 Quarantine and Isolation | CDC

Can an infected person spread COVID-19 before showing symptoms?

An infected person can spread COVID-19 starting 2 days before the person has any symptoms or tests positive. People who have COVID-19 don't always have obvious symptoms. A person is still considered a close contact even if they were wearing a mask while they were around someone with COVID-19.

COVID-19 Contact Tracing

How long do you need to stay home after coming into close contact with someone who has COVID-19?

Anyone who has had close contact with someone with COVID-19 should stay home for 14 days after their last exposure to that person.

COVID-19 Quarantine and Isolation

How long is the incubation period for COVID-19?

- The incubation period for COVID-19. Given that the incubation period can be up to 14 days, CDC recommends conducting screening testing at least weekly.

Overview of Testing for SARS-CoV-2 (COVID-19)

How long should I wait to get tested for COVID-19 after being exposed if I am fully vaccinated?

- If you have been fully vaccinated and around someone who has COVID-19 (close contact), you do not need to stay away from others (quarantine), or be restricted from work unless you develop COVID-like symptoms. We recommend that you get tested 3-5 days after your last exposure to someone with COVID-19.

Contact Tracer's Interview Tool: Notifying People About an Exposure to COVID-19

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