New study says risk of hospitalization or death reduces by 25% with Ómicron compared to Delta

Infection with the new variant of Covid-19 Ómicron causes less serious illness and reduces the risk of hospitalization or death by 25%, compared to Delta, revealed this Saturday a study developed in South Africa.

The work carried out by South African scientists points out, however, that the severity of cases with the new variant is attenuated mainly due to previous vaccines and infections.

“Severe Covid-19 cases were reduced in this new wave driven by Ómicron, mainly due to the protection provided by a previous infection and / or vaccination”, highlights the study, quoted by the EFE agency.

This lower severity “may represent a 25% reduced risk of serious hospitalizations or death compared to the [variante] Delta”.

Even taking into account the protection provided by the vaccine, or the immunity given by previous infections, the study data suggest that Ómicron’s specific characteristics reduce the risk of serious illness by 25%, compared to Delta”.

This research is supported by other scientific studies that have already been released and that point to greater transmissibility, but less seriousness, of this variant that was detected in late November in South Africa.

The study took place in the South African province of Western Cape and compared 5144 patients infected during the fourth wave, influenced by Ómicron.

The study was carried out by the National Institute of Infectious Diseases (NICD) in South Africa and by provincial and national health authorities and is still pending peer review.

South Africa, which it considers to have already surpassed the peak of this wave at the end of December, has recorded 3.5 million cases and more than 93,000 deaths since the beginning of the pandemic.

The evolution of the vaccination rate remains slow in the country and less than 30% of the population has a complete vaccination schedule.

Covid-19 has caused 5,519,380 deaths worldwide since the beginning of the pandemic, according to the latest report by the Agence France-Presse.

The respiratory disease is caused by the SARS-CoV-2 coronavirus, detected in late 2019 in Wuhan, a city in central China.

A new variant, Ómicron, considered worrying and very contagious by the World Health Organization (WHO), has been detected in southern Africa, but since the South African health authorities gave the alert in November, infections have been reported in at least 110 countries, being dominant in Portugal.


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