COVID-19 symptoms can range from mild to severe, and they may overlap with influenza, RSV and other respiratory infections. Symptoms alone cannot reliably confirm which virus is responsible.
Symptoms people may experience
Reported symptoms include fever or chills, sore throat, cough, fatigue, headache, muscle aches, congestion, shortness of breath and changes in taste or smell. Some people also experience nausea, vomiting or diarrhea. The pattern and intensity can vary.
When testing may help
A COVID-19 test can help clarify what may be causing symptoms and inform steps to protect others. Rapid antigen tests and laboratory-based molecular tests work differently. Follow the instructions supplied with the test and check local guidance about timing, repeat testing and confirmation.
When to contact a healthcare professional
Seek prompt medical advice if you are at higher risk of severe illness, symptoms are worsening, or you are unsure what care is appropriate. Some treatments are time-sensitive and may be considered by a clinician for people at higher risk.
Emergency warning signs
Severe trouble breathing, persistent chest pain or pressure, new confusion, inability to stay awake, or pale, gray or blue-colored skin, lips or nail beds can be emergency warning signs. This list is not exhaustive. Contact local emergency services for a suspected emergency.
Use trusted guidance
For current testing and care advice, consult your local health authority and a qualified healthcare professional. See the CDC symptoms guidance for current public information. This article does not diagnose illness.