Threat of lengthy COVID decrease from Omicron in comparison with Delta variant, coronavirus research suggests | UK Information

The Omicron variant of coronavirus is much less more likely to trigger lengthy COVID than the Delta pressure, new analysis suggests.

The research, carried out by King’s School London, discovered that the percentages of experiencing lengthy COVID had been between 20% and 50% decrease in Omicron when put next with the Delta variant, relying on age and time since vaccination.

Researchers used information from the Zoe COVID Symptom research and lead creator Dr Claire Steves mentioned: “The Omicron variant seems considerably much less more likely to trigger lengthy COVID than earlier variants however nonetheless one in 23 individuals who catch COVID-19 go on to have signs for greater than 4 weeks.

“Given the numbers of individuals affected it is essential that we proceed to help them at work, at dwelling and throughout the NHS.”

Evaluation confirmed that 4.4% of Omicron instances had been lengthy COVID however greater than double (10.8%) of Delta instances confirmed indicators of lengthy COVID.

Nonetheless, the quantity of people that had lengthy COVID was greater through the Omicron interval due to the variety of infections of the variant throughout its peak within the UK between December 2021 and February 2022.

The Workplace of Nationwide Statistics estimates the variety of lengthy COVID victims elevated from 1.3 million in January 2022 to 2 million as of 1 Could.

The Nationwide Institute for Well being and Care Excellence (Good) defines lengthy COVID as having new or ongoing signs 4 weeks or extra after preliminary an infection.

Signs embrace fatigue, shortness of breath, lack of focus and joint ache or impacted day-to-day exercise which for some individuals might be severely limiting.

Learn extra:
Infections improve in UK for the primary time in two months
What it was actually like in care properties
Lengthy COVID victims ‘contemplating shopping for personal oxygen’

The research, which was printed in a letter to The Lancet, recognized 56,003 UK adults who examined optimistic between 20 December 2021 and 9 March 2022, when Omicron was dominant.

Researchers in contrast these to 41,361 instances first testing optimistic between 1 June and 27 November 2021, when Delta was dominant.


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An undated transmission electron microscope image shows SARS-CoV-2, also known as novel coronavirus, the virus that causes COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in the lab. NIAID-RML/Handout via REUTERS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT

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