"Long COVID is a set of health issues after someone has COVID-19. These could be: new health issues, ongoing issues, or worsening of previous symptoms or conditions. Long COVID is a biological disease that affects hundreds of millions of people around the world. It can cause significant disability and can be fatal. It is a continuing health crisis.
Long COVID is an “umbrella” term. This means it can include many symptoms as well as other diseases or medical diagnoses. It can affect all parts of the body. It affects people in all age groups, races and ethnicities, genders, and sexual orientations. People with or without prior health issues can develop the disease. It can happen after asymptomatic or mild infection."