Abstract
Long COVID is a chronic condition that follows after acute COVID-19 and is characterized by a wide range of persistent, cyclic symptoms. PubMed search for publications featuring 'Long COVID' or 'post-acute sequelae of COVID-19'. Long COVID occurs frequently post-acute COVID-19, with a majority of people experiencing at least one symptom (such as cough, fatigue, myalgia, anosmia and dyspnoea) 4weeks after infection. The specific symptoms and the minimum duration of symptoms required to be defined as Long COVID. There is a consistent reduction in Long COVID incidence amongst vaccinated individuals, although the extent of this effect remains unclear. There is an urgent need to understand the causes of Long COVID, especially extreme fatigue more than 6months after infection. We must understand who is at risk and whether reinfections similarly risk Long COVID.
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