Most people who contract COVID recover within a few weeks. But for some people, symptoms can develop later, or persist for a long time after the initial infection. A recent review of the evidence on long COVID suggests the condition affects at least 65 million people around the world, occurring after at least 10% of COVID infections, and affecting all age groups.
Common long COVID symptoms include fatigue, shortness of breath, and difficulties with memory and concentration ("brain fog"). Symptoms can worsen with physical or mental exertion. We're still learning about long COVID, and treatment options are very limited.
