The World Health Organisation (WHO) defines long COVID as a constellation of long-term symptoms that some people experience after they have had COVID-19 and terms these people as long haulers. The WHO lists fatigue, shortness of breath or difficulty breathing, memory, concentration or sleep problems, persistent cough, chest pain, trouble speaking, muscle aches, loss of smell or taste, depression or anxiety, and fever as the common symptoms of long COVID.
This is the first time exercise intolerance is being seen as a sign of long COVID.