Long COVID
The best answer now is that it is not known, but the full extent will probably be underestimated at the moment.
www.bmj.com/content/370/bmj.m2815
"The Royal College of General Practitioners says it expects GPs to see an influx of patients with “long covid”"
"Writing in JAMA, a team of researchers from Italy reported that nearly nine in 10 patients (87%) discharged from a Rome hospital after recovering from covid-19 were still experiencing at least one symptom 60 days after onset. They found that 13% of the 143 people were completely free of any symptoms, while 32% had one or two symptoms, and 55% had three or more.3 Although none of the patients had fever or any signs or symptoms of acute illness, many still reported fatigue (53%), dyspnoea (43%), joint pain (27%), and chest pain (22%). Two fifths of patients reported a worsened quality of life."
"NHS England is set to launch an online portal later this month where people who are suffering long term effects of covid-19 (not just patients who were admitted to hospital) can communicate with nurses, physiotherapists, and mental health specialists"
“Evidence shows that many of those survivors are likely to have significant ongoing health problems, including breathing difficulties, enduring tiredness, reduced muscle function, impaired ability to perform vital everyday tasks, and mental health problems such as post-traumatic stress disorder, anxiety, and depression,”