A new study in South Africa suggests that the alternative Omicron is less aggressive than Delta. According to the researchers, A person with oomicron has a 70% lower chance of hospitalization compared to a delta infection.. If compared to other breeds, the percentage increases to 80%.
The study led by researchers at the National Institute of Infectious Diseases (NICD) was Published on Medrxiv as a preprint, Still waiting for peer review, on Tuesday (21).
“This is South African epidemiology: Omicron behaves less aggressively,” Professor Sherrill Cohen of the National Institute of Infectious Diseases and one of the authors of the new study told Reuters.
The researchers came to this conclusion after tracking the development of 161,328 cases of Covid-19 recorded in South Africa between October 1 and December 6 this year.
Low omicron intensity, according to the study, may be related to the progression of vaccination in the population, causing people with the new variant to have no severe symptoms.
“It is likely that part of this decline is a result of the population’s higher immunity,” the study researchers say.
The data refer only to patients who were not hospitalized. According to the investigation, after hospitalization, no significant differences were observed between the aggressiveness of the variants.
The B.1.1529 variant, known as omicron, First reported to WHO on November 24, 2021from South Africa. Since it was reported, the variant has caused a record number of cases in the country.
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