FAQ - How common is it?

A precise estimate of prevalence is difficult. According to a recent summary paper from the World Health Organization, a quarter of those with CoViD-19 experience persistent symptoms four to five weeks after finding the positive finding. The largest of the studies, carried out in the United Kingdom by the Office for National Statistics on a sample of more than 20,000 people, showed a prevalence of symptoms of 13% beyond 12 weeks post-infection, with a prevalence eight times higher than that of a control group, a higher risk in women than men (14.7% vs. 12.7%) and higher prevalence in the 25-34 age group (18.2%). A study published in JAMA performed in Italy on 143 patients who had been hospitalized and were evaluated two months after the first onset of symptoms found that only 13% of patients were completely asymptomatic while 32% reported one or two symptoms and 55% had three or more symptoms.