Ongoing illness after infection with Covid-19, sometimes called “long Covid”, may not be one syndrome but possibly up to four causing a rollercoaster of symptoms affecting all parts of the body and mind, doctors have said.

In an initial report about long-term Covid-19, Britain’s National Institute for Health Research (NIHR) said one common theme among ongoing Covid patients — some of whom are seven months or more into their illness — is that symptoms appear in one physiological area, such as the heart or lungs, only to abate and then arise again in a different area.

“This review highlights the detrimental physical and psychological impact that ongoing Covid is having on many people’s lives,” said Dr Elaine Maxwell, who led the report.

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