How many days does fever last after COVID-19 infection?

Reviewed by Yoshinori Abe, MD

Internal Medicine

After a COVID-19 infection, a fever of 38°C (100.4°F) or higher typically lasts between 2 and 10 days. The duration can vary depending on the individual's immune response, age, vaccination status, and overall health. Most people see their fever resolve within about a week, though some may experience a longer or shorter course.

Because fever duration and severity differ from person to person, it's important to monitor your symptoms closely and know when to seek care. A free, instant, online symptom check can help you evaluate your specific situation, identify possible causes, and guide your next steps—whether that's rest at home or reaching out to a healthcare provider. Taking a few minutes now could bring clarity and peace of mind.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Discover if your fever needs care today Find likely causes of COVID fever See whether fever could be serious Find OTC fever relief options Find a doctor for COVID fever Discover home remedies for fever Understand what causes fever with COVID

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Explanation

Fever (temperature greater than 38℃) due to COVID-19 is the most common symptom and typically lasts 2-5 days. Fever duration and symptom severity vary based on factors such as vaccination status, co-occurring medical conditions and age. Those with a higher number of vaccinations and mild symptoms may not exhibit fever symptoms. On the other hand, in those with severe infections such as pneumonia, fever symptoms may last longer. If the fever persists beyond 5-7 days or if severe symptoms appear in addition to the fever, use our free AI symptom checker to understand what might be causing your symptoms and get personalized guidance on next steps. Ubie AI can suggest personalized treatment options for COVID-19 based on your specific symptoms.

(References)

Tavakolifard N, Moeini M, Haddadpoor A, Heidari K, Rezaee M, Amini Z. Clinical Symptoms of COVID-19 and Their Association with Disease Outcome. Adv Biomed Res. 2022 Jan 31;11:2. doi: 10.4103/abr.abr_79_21. PMID: 35284355; PMCID: PMC8906090.

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