COVID-19 is an illness caused by a virus called SARS-CoV-2 that can spread from person to person. Symptoms can range from mild to severe illness. People can also be asymptomatic (have no symptoms) and still spread the virus to others.
![Checking for a Fever A man checks a thermometer to see if he has a fever, while holding his forehead.](http://covid.southernnevadahealthdistrict.org/wp-content/uploads/2020/12/thermometer-fever.jpg)
Symptoms of COVID-19 may include
- Fever or chills
- Cough
- Shortness of breath or difficulty breathing
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhea