How long can you transmit COVID?

Transmission happens when virus-containing particles leave an infected person's nose or mouth, particularly during close conversation, coughing, singing or crowded indoor contact. A positive test can remain after infectiousness has fallen, so a test result alone cannot precisely show how contagious someone is. Risk is higher around people who are medically vulnerable and in poorly ventilated spaces. Ongoing symptoms such as fatigue or loss of smell may continue after the period of greatest transmission has passed.

Stay home and avoid close contact while you feel acutely unwell. Improve ventilation, wear a well-fitting mask around others, and avoid sharing a room with someone at higher risk when possible. Wash hands after coughing, sneezing or blowing your nose, and do not share cups, utensils or towels. Follow current UAE public-health advice for returning to work, school or group activities; if symptoms are improving and you have no fever, continue sensible precautions around vulnerable people.

Transmission questions are separate from illness severity. Seek urgent medical help for trouble breathing, chest pain, new confusion, unusual difficulty staying awake, or blue or grey lips. Contact a clinician if symptoms are worsening, fever returns, you cannot maintain fluids, or you have an immune condition or treatment that may change your risk.

Ask when it is reasonable to resume close contact, whether your symptoms or test result need interpretation, and what precautions are sensible for people in your household. Mention the date symptoms began, any positive test, and whether someone at home is vulnerable.