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Omicron is less likely to cause a long COVID: Research

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Peeyush Ghalot
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The Omicron SARS-CoV-2 variant is up to 50% less likely than its previous Delta version to induce protracted COVID. However, the study's authors point out that, while the rate of Omicron long COVID appears to be lower since so many people have been infected with the newer variety, the real number of persons who have been infected is quite high. Numerous earlier investigations have demonstrated that, although being more easily transmitted, the Omicron variation produces less severe illness in general than Delta. From December 20, 2021, to March 9, 2022, researchers from King's College London identified 56,003 UK people who tested positive for COVID-19. They classified them as Omicron patients since Omicron was responsible for more than 70% of UK cases during that time period. Similarly, from June 1, 2021, to November 27, 2021, 41,361 people who tested positive were labelled as Delta patients. In both categories, women outweighed males, with 55 percent for Omicron and 59 percent for Delta. However, participants in both groups were around the same age (53 years on average) and had similar rates of comorbidities (around 19 percent). Long COVID was defined as having new or persistent symptoms 4 weeks or more from the beginning of COVID-19. Fatigue, shortness of breath, lack of attention, and joint discomfort are some of the symptoms. These symptoms might limit everyday activities and can be extremely limiting in some circumstances. Long COVID was detected in 2,501 (4.5%) of Omicron patients and 4,469 (10.8%) of Delta patients, according to the researchers. Regardless of immunisation timing, Omicron patients had a 24 percent to 50 percent lower risk of protracted COVID than Delta patients (95 percent confidence intervals, 20 percent to 32 percent and 43 percent to 59 percent, respectively).

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