What longer-term effects can occur after a SARS-CoV-2 infection?
COVID-19 can cause a variety of longer-lasting symptoms such as psychological difficulties and problems affecting the heart, nervous system and/or lungs.
Some common long-term symptoms are
- quickly becoming exhausted and having breathing difficulties with physical exertion
- quickly becoming exhausted by mental (cognitive) work
- numerous neuropsychological problems such as difficulty with concentration, perception or memory
- headache
- impaired senses of taste and smell
- perpetual exhaustion (also known as fatigue).
Other possible long-term effects are
- aching muscles and limbs
- sleep problems
- depressive mood and anxiety
- concentration problems
- racing or irregular heartbeat
- hair loss
- gastro-intestinal symptoms
- metabolic problems (with the uptake and digestion of nutrients)..
When the symptoms are still present three months after a SARS-CoV-2 infection and they last longer than two months, the condition is known as long COVID or post-COVID syndrome.
It is thought that about 15% of the people who become infected with SARS-CoV-2 are subsequently affected by long COVID. Children and young people can also experience longer-lasting health problems. The precise causes are still unknown. The risk is higher after severe illness than after mild illness.
Treating long COVID faces doctors and patients with particular challenges. If fatigue symptoms (tiredness, exhaustion, lack of resilience) last for several months, they can develop into chronic fatigue syndrome.
Further information about long COVID and post COVID syndrome is available in a patient guide produced by AWMF (Association of the Scientific Medical Societies) and at the Federal Health Ministry’s website gesund.bund.de.