Two new preprints add to growing evidence that the Omicron coronavirus variant may cause less severe illness and hospitalizations than the Delta variant.
Omicron was associated with a two-thirds reduction in the risk of Covid-19 hospitalization compared to Delta, showing one research, released online on Wednesday as working paper by researchers at the University of Edinburgh, UK. That study was done from Scotland.
Other paper, posted Tuesday to an online server medrxiv.org, showed that people with Omicron infections had an 80% lower hospitalization rate than with Delta infections. But once a patient was hospitalized, there was no difference in the risk of severe illness, according to that study, which is based in South Africa.
Both studies included preliminary data and have not been published in peer-reviewed journals.
The Scotland study included data on 23,840 Omicron cases and 126,511 Delta cases, between 1 November and 19 December. The researchers – from the University of Edinburgh, the University of Strathclyde and Public Health Scotland – health outcomes have been scrutinized. of Omicron infections compared with Delta infections. There were 15 hospitalizations among those with Omicron infections and 856 hospitalizations in Delta.
James Naismith, director of the Rosalind Franklin Institute and professor of structure: “Although the numbers are small, this study is good news. The two-thirds reduction in hospital admissions among young people vaccinated with the vaccine double request versus Delta suggests that Omicron will be lighter for many people.” biologists at Oxford University, who were not involved in both studies, said in a written statement distributed by Communication Science Center on Wednesday.
The researchers found that Omicron cases were 10 times more likely to be reinfected in people who had used Covid-19 than in Delta. The data also showed that receiving the third dose, or booster shot, was associated with a 57% reduction in the risk of symptomatic Omicron infection when compared with completing the second dose at least 25 weeks later. .
“This initial national data suggests that Omicron is associated with a two-thirds reduction in the risk of COVID-19 hospitalization when compared with Delta. While providing the best protection against Delta, the injection dose The third strain/revaccination provides significant additional protection against Omicron’s risk of symptomatic COVID-19 infection.
Read the full story of the studies here.
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