Risk factors for COVID-19

Symptoms Signs and symptoms of COVID-19 may appear two to 14 days after exposure and can include:  Fever Cough Shortness of breath or difficulty breathing The severity of COVID-19 symptoms can range from very mild to severe. People who are older or have existing medical conditions, such as heart disease, may be at higher risk of serious illness. This is similar to what is seen with other respiratory illnesses, such as influenza.  When to see a doctor Contact your doctor right away if you have COVID-19 symptoms and you've possibly been exposed to the virus. Tell your doctor if you've recently traveled internationally. Call your doctor ahead to tell him or her about your symptoms and recent travels and possible exposure before you go to your appointment.  Causes It's unclear exactly how contagious the new coronavirus is. It appears to be spreading from person to person among those in close contact. It may be spread by respiratory droplets released when someone with the virus coughs or sneezes.  Risk factors for COVID-19 appear to include:  Recent travel from or residence in an area with ongoing spread of COVID-19 as determined by CDC or WHO Close contact with someone who has COVID-19 — such as when a family member or health care worker takes care of an infected person
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