The Deputy Medical Director at the Beacon Hospital in Dublin said there is a lot about long Covid that is not known and a large amount of research in different areas will need to be undertaken to understand how this process occurs.
According to the Health Service Executive, there is an absence of higher-quality evidence as yet about the longer-term effects of Covid-19, but a growing body of anecdotal/observational evidence and some preliminary studies suggest persistence of at least one and sometimes several symptoms.
The HSE says fatigue, breathlessness, and cough, joint and muscle pain, chest pain, and palpitations are among the most commonly reported symptoms.