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COVID-19, also called coronavirus disease 2019, is an illness caused by a virus. The virus is called severe acute respiratory syndrome coronavirus 2, or more commonly, SARS-CoV-2. It started spreading at the end of 2019 and became a pandemic disease in 2020.
The virus that causes COVID-19 spreads most commonly through the air in tiny droplets of fluid between people in close contact. Many people with COVID-19 have no symptoms or mild illness. But for older adults and people with certain medica...
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Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your health. Never disregard professional medical advice or delay in seeking it because of something you have read on the community. |
Typical COVID-19 symptoms often show up 2 to 14 days after contact with the virus.
Symptoms can include:
COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2.
The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, their breath may be infected with the COVID-19 virus.
The coronavirus carried by a person's breath can land directly on the face of a nearby person, after a sneeze or cough, for example. The droplets or particles the infected person ...
Many people with COVID-19 recover with rest, plenty of fluids and care that manages symptoms. Medicine you can get without a prescription can help, such as:
If you are at high risk of serious COVID-19 illness, your healthcare professional may suggest medicine to prevent mild illness from getting worse. These medicines can include nirm...
The Centers for Disease Control and Prevention (CDC) recommends a COVID-19 vaccine for everyone age 6 months and older. The COVID-19 vaccine can lower the risk of death or serious illness caused by COVID-19.
The COVID-19 vaccines available in the United States are:
2023-2024 Pfizer-BioNTech COVID-19 vaccine. This vaccine is available for people age 6 months and older.
Among people with a typical immune system:
For informational purposes only and not a substitute for professional medical advice, diagnosis, or treatment.
© Mayo Clinic
| Nasal and paranasal tumors |
| Pulmonary fibrosis |
| Pneumonitis |
| Legionnaires' disease |
