‘Long Covid’ risk lower with Omicron, study findson June 17, 2022 at 1:34 am

- Advertisement -
- Advertisement -
- Advertisement -
- Advertisement -

Last winter’s Omicron variant was less likely to cause lingering symptoms, researchers say.

woman on the sofa with a blanketImage source, Getty Images

Last winter’s Omicron variant was less likely to cause lingering symptoms, known as “long Covid”, a UK investigation, in The Lancet, suggests.

The King’s College London team looked at data from nearly 100,000 people who logged their Covid symptoms on an app.

Just over 4% of those infected during the Omicron wave had logged long Covid symptoms, compared with 10% of those infected in the preceding, Delta, wave.

But as far more were infected during the Omicron wave, the total was higher.

In fact, the much bigger number of new infections during the Omicron wave “entirely trumped” the variant’s potential lower risk of long Covid, Kevin McConway, emeritus professor of applied statistics, at The Open University, said.

“Anyway, you don’t really have any choice about which virus variant you might be infected with,” he said.

“What’s more, nothing in these findings tells us what might happen with a different new variant, in terms of long Covid risk.”

The researchers tried to take into account other variables, such as how long ago someone had been vaccinated against Covid, but it is impossible to be certain the difference between variants caused the difference in long Covid numbers.

Lead researcher Dr Claire Steves said: “The Omicron variant appears substantially less likely to cause long Covid than previous variants – but still, one out of every 23 people who catches Covid-19 goes on to have symptoms for more than four weeks.

“Given the numbers of people affected, it’s important that we continue to support them at work, at home and within the NHS.”

Officials estimate long Covid has affected at least two million people in the UK.

Prior to the Omicron wave, the estimate was about 1.3 million.

2px presentational grey line

What is long Covid?

While most people who catch Covid don’t become severely ill and get better relatively quickly, some have long-term problems after recovering from the original infection – even if they weren’t very ill in the first place.

Long Covid isn’t fully understood, and there’s no internationally-agreed definition – so estimates of how common it is, or what the main symptoms are, vary.

Guidance for health professionals refers to symptoms that continue for more than 12 weeks which cannot be explained by another cause. The Lancet research included symptoms lasting four weeks or more.

According to the NHS, these can include:

  • extreme tiredness
  • shortness of breath, chest pain or tightness
  • problems with memory and concentration (“brain fog”)
  • changes to taste and smell
  • joint pain

Patient surveys suggest a range of other symptoms may also be present, including gut problems, insomnia and vision changes.

2px presentational grey line

Related Internet Links

The BBC is not responsible for the content of external sites.
- Advertisement -

Discover

Sponsor

Latest

Mesothelioma Causes

Mesothelioma is a serious cancer of the mesothelium, which is the lining that envelopes the internal organs. The lungs, heart, stomach, intestines, and many...

Covid-19: ‘No evidence’ of AstraZeneca jab problems, says WHOon March 15, 2021 at 3:11 pm

The world health body says it is vital that vaccination campaigns continue, so lives can be saved.The world health body says it is vital...

Southgate plans Rashford meeting after dropping striker from England squadon March 17, 2022 at 10:48 pm

Gareth Southgate plans to meet with Marcus Rashford after leaving the Manchester United striker out of his latest England squad.

Gene-edited tomatoes could soon be sold in Englandon May 23, 2022 at 3:01 pm

A bill is to be introduced in Parliament in two days' time to allow the commercial growing of gene-edited crops in England.Image source, BBC...

Covid: Travellers returning to England warned of six-hour airport queueson July 9, 2021 at 10:52 am

Border Force staff will struggle to deal with a surge in passengers over the summer, a union says.image copyrightReutersPeople returning to England from abroad...