A diagnostic test can show if you have an active coronavirus infection and should take steps to quarantine or isolate yourself from others..

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An antibody test looks for antibodies that are made by the immune system in response to a threat, such as a specific virus. Antibodies can help fight infections. Antibodies can take several days or weeks to develop after you have an infection and may stay in your blood for several weeks after recovery.

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Antigen tests, also called rapid diagnostic tests, detect specific proteins on the surface of the coronavirus. Antigen test results may come back in as little as 10 to 15 minutes; you may wait a few days or longer for PCR test results.

Going back to work (voluntary or paid) after illness can be challenging. Persisting symptoms such as shortness of breath, fatigue, poor concentration, and anxiety can all make return to work more difficult. The longer you are off sick, the harder it can be to go back to work.

Doing the right kind of work is good for your mental and physical health, even if you have a health condition.

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