The Long Covid SOS charity called on the Government to stop putting its "head in the sand" and take action to reduce the growing number of long Covid sufferers.
The annual GP Patient Survey polled patients in thousands of practices across England between January and April on various aspects of their health – including 38 in the NHS Doncaster CCG area.
Patients were asked if they were still experiencing symptoms more than 12 weeks after they first had Covid-19, that could not be explained by something else.
Of the 3,766 respondents in Doncaster, 208 (5.5 per cent) said they had symptoms of long Covid.
Applying this rate to the latest population estimate for the CCG area as a whole means 13,871 people aged 16 and over in the area could be suffering from lingering health problems.
Across England, 4.4 per cent of GP patients said they had long Covid symptoms – which can include fatigue, shortness of breath, and heart palpitations – around two million people.
Long Covid SOS said this rate is higher than estimates by the Office for National Statistics. The GP survey showed that the vast majority (84.9 per cent) of patients who responded to the survey in Doncaster said they did not have long Covid symptoms, but 8.7 per cent said they were unsure and 0.9 per cent preferred not to answer.
The Royal College of GPs said post-Covid syndrome is still a relatively new condition, but the prolonged health effects that some experience can have a terrible impact on their lives.