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Infections caused by the Omicron variant are almost as severe as those of the Delta mutation, according to early data from the United Kingdom.
Researchers at ‘Imperial College London’ compared 11,329 people with confirmed or possible Omicron infection with nearly 200,000 people infected with other variants. So far, according to a report released before being evaluated and updated Monday, researchers “They see no evidence that Omicron is less heavy than Delta“, According to the percentage of positive people who report symptoms or the percentage of cases that require hospitalization.
An indicator of the speed at which the Omicron is transmitted is the following graph prepared by the Sager Institute in England.
The booster dose increases the effectiveness of the vaccine
At the same time, the available vaccines have an effectiveness of 0% to 20% after two doses. However, the effectiveness rate increases from 55% to 80% after booster dose.
The same study shows that after taking into account individual risk factors, the chances of re-infection with Omicron are 5.4 times higher than with Delta.
A study of healthcare workers in the pre-Omicron era showed that Sars-CoV-2 infection provided 85% protection against a second infection within 6 months. In Omicron, protection reaches only 19%.
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