Long COVID at a Glance
A clear summary to help you understand everything, without medical jargon.
What is Long COVID?
• Long COVID refers to symptoms that persist or appear after an infection with the
COVID-19 virus.
• It is generally referred to as such when these symptoms last more than three months and cannot be explained by
another illness.
• It can occur even after a mild initial infection and affects both adults and
children.
The Main Symptoms
• Severe fatigue is the most common symptom: it does not go away with rest and limits
daily activities.
• Many people experience shortness of breath, palpitations, or discomfort during physical exertion.
• Memory and concentration problems, often referred to as “brain fog,” are very
common.
• Loss of smell or taste, muscle and joint pain, and sleep and
digestive problems may also occur.
Who is affected?
• Long COVID can affect anyone, regardless of the severity of the initial infection.
• It appears to be more common among women, people aged 36 to 50, and those who were
hospitalized.
• Children and young adults can also be affected, although this is rarer.
Possible causes
• The exact causes are not yet fully understood.

• Researchers suggest several possible causes: remnants of the virus that persist in the body, an
immune system dysfunction, microclots in the blood vessels, or a
nervous system dysfunction.
How the Diagnosis Is Made
• There is no single test to confirm long COVID.
• The doctor relies on symptoms, medical history, and test results to rule out other
causes.
• Additional tests (blood tests, respiratory or cardiac evaluations) may be
performed if necessary.
• Regular medical follow-up allows treatment to be tailored to each individual.
Treatment
• There is currently no cure for long COVID, but many symptoms can be
relieved.
• Rest, learning to manage one’s energy (“pacing”), and a very gradual return to
physical activity are essential.
• A multidisciplinary care team (doctor, physical therapist, psychologist) is often recommended.
Returning to a Peaceful Daily Life
• The prognosis is generally favorable: most people improve over time, sometimes
slowly and in stages.
• It’s important not to rush things, to get plenty of rest, and to stay in touch with your doctor.
• Patient organizations and support groups exist to help break the isolation and share
advice.
• Research is advancing, and new treatment options are regularly emerging.

Translated with DeepL.com (free version)