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Identify the symptoms of COVID-19, understand when it's mild, and recognize emergency signs.
COVID-19 is a highly contagious respiratory illness caused by the SARS-CoV-2 virus. While most cases are mild to moderate, certain individuals—particularly those who are older, have underlying health conditions, or a weakened immune system—may experience severe symptoms.
Even if you feel well, it’s essential to know that anyone infected with COVID-19 can spread it, even without showing symptoms.
Possible COVID-19 Symptoms
COVID-19 symptoms can vary widely, from mild to severe, and can appear 2–14 days after exposure to the virus. Common symptoms include:
- Fever or chills
- Persistent cough
- Difficulty breathing or shortness of breath
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhea
What to Do If You Are Experiencing COVID-19 Symptoms
Stay Home
If you experience symptoms that could indicate COVID-19, stay home and away from others, including those in your household who are not sick. Staying away from others helps prevent spreading the virus.
Get Tested
Consider getting tested to confirm if your symptoms are due to COVID-19.
- At-Home Tests: Purchase COVID-19 self-tests online or at pharmacies and retail stores. Some health insurance plans may reimburse the cost—check with your insurer for details. You can find a list of FDA-authorized tests on the FDA's website .
- Community Testing Locations: Pharmacies, health centers , and some local health departments offer low- or no-cost PCR and antigen testing, even for those without insurance. Find a testing site near you for convenient access to these tests.
- Accessibility Support: If you have a disability, the Disability Information and Access Line can help you locate testing options or find a testing location nearby.
Visit our COVID-19 testing page for more information.
Seek Medical Attention
If you test positive and are at risk for severe illness (due to age or underlying health conditions), contact your health care provider for further guidance. Early medical intervention can help reduce the risk of severe complications.
Recognizing Emergency Symptoms of COVID-19:
Some COVID-19 symptoms require immediate medical attention. Call 911 or go to the nearest emergency facility if you or someone you are with shows any of the following signs:
- Trouble breathing
- Persistent pain or pressure in the chest
- Inability to wake or stay awake
- Prolonged confusion
- Pale, gray, or blue-colored skin, lips, or nail beds, depending on skin tone.
Important: If calling 911 or going to an emergency facility, inform the operator or staff that the person may have COVID-19 to ensure proper precautions are taken.