This CDC clinician-facing page defines Long COVID as an infection-associated chronic condition present for at least three months after SARS-CoV-2 infection, affecting one or more organ systems. It outlines possible causes (organ damage, dysregulated inflammation, viral reservoirs, autoimmunity) and lists risk factors such as being female, Hispanic ethnicity, or having had severe acute COVID-19.
Symptoms & Diagnosis
Clinical Overview of Long COVID
March 9, 2026
The CDC's clinician-facing definition of Long COVID as a chronic condition present at least three months post-infection, with possible causes and risk factors.
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