How long does COVID last?
Last updated September 3, 2026.
Mild cases typically improve over 1 to 2 weeks, with symptoms appearing 2 to 14 days after exposure per the CDC. Severity varies enormously with age, vaccination, and chronic conditions. Fatigue, cough, and brain fog often outlast the infection by weeks - symptoms persisting past about a month are worth a long-COVID conversation. Breathing trouble, chest pain, or confusion means care now.
What to do
- Expect a two-week arc for mild cases. Several bad days, then steady improvement.
- Follow current isolation guidance. Contagiousness outlasts the worst symptoms - check the CDC's current rules.
- Treat early if higher risk. Antivirals exist and work best started early - ask fast if you qualify.
- Flag the month mark. Symptoms persisting past about four weeks deserve a long-COVID evaluation.
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