What is Long Covid

Long Covid, also known as long-haul Covid and post-acute sequelae of Covid-19, PASC for short, describes three different conditions or symptom clusters that develop after a Covid infection.
The three, according to a study by King’s College in London, are:

Neurological symptoms – the most commonly reported Long Covid symptoms – include severe fatigue, depression, an inability to concentrate, brain fog, a decrease in the sense of smell or anosmia, and delirium.

Respiratory symptoms that could involve damage to the lungs and include severe shortness of breath, palpitations, fatigue, and chest pain.

Systemic/inflammatory and abdominal symptoms include musculoskeletal pain, anemia, myalgias, gastrointestinal disorders, generalmalaise, and fatigue.

Researchers estimate that 15% to 30% of individuals who contract Covid – even mild or asymptomatic cases – end up with some form of Long Covid.

The most common symptoms patients report are fatigue and memory issues. Other symptoms afflicting a high number of Long Covid patients include generalmalaise, headaches, shortness of breath, loss of smell, muscle weakness, low fever, and cognitive dysfunction.

Long Covid is considered by default to be a diagnosis of exclusion

Health systems in some countries are trying to deal with the condition by opening specialized clinics but there is no magic wand to treat the condition. Most treatments address specific symptoms and attempt to alleviate the effects of those conditions.

Additional Resources

The U.S. Centers for Disease Control and Prevention and the National Health Service in the United Kingdom offer comprehensive lists of symptoms as well.