German 
As of June 1st, 2022, Great Britain’s statistical authority reports that more than 2 million patients suffer from the consequences of a SARS-COV‑2 infection, which is 3.1% of the population. According to the authorities, persistent symptoms of those surveyed that cannot be attributed to other reasons are considered long-Covid.
The sample includes 300,000 respondents. Of these, 71% of those affected by Long-Covid reported being limited in their lives by the symptoms. The most common include fatigue, shortness of breath, chronic cough and body aches, which last up to twelve weeks after a SARS-COV‑2 infection.
In Great Britain there are up to 90 clinics specializing in long-Covid, which are expected to intensify their work. The current number of people affected is the highest on record. In 2021, the number was estimated at around 1 million patients.
Causes of long-term symptoms unknown
Speculations about the reasons for Long-Covid are varied. Among other things, an autoimmune reaction is assumed, in which the immune system responds too strongly after an initial infection and the organism damages itself. It is also suspected that the virus damages the blood vessels or causes micro blood clotting, which impairs oxygen transport and thus stresses the cardiovascular system.
According to the US American health authority CDC, long-Covid patients have twice the risk of later breathing problems or a pulmonary embolism. Studies by the CDC repeatedly show that around 20–30 percent of those infected with SARS-COV‑2 suffer from long-term consequences.