It is not yet clear what proportion of people experience long-term health consequences due to COVID-19.
People who had severe COVID-19 are more likely to have long-term symptoms than people who initially had mild symptoms. However, people who were only mildly ill with COVID-19 can also develop long-term consequences.
According to various studies, an estimated 10 to 20 per cent of adults with COVID-19 still suffer symptoms after 12 or more weeks. Among adults hospitalised for COVID-19, 76 % were still symptomatic six months after discharge.
Certain risk factors could trigger Long COVID. These include old age, being severely overweight (obesity), and pre-existing lung and heart conditions. However, long-term consequences can also occur in children, young people and those with no previous illness. Women – regardless of age – are affected more than average by the chronic fatigue.