The risk of hospitalization doubles with the Delta variant, according to a study

People infected with the highly contagious Delta variant are twice as likely to be hospitalized as those infected with the Alpha variant...


People infected with the highly contagious Delta variant are twice as likely to be hospitalized as those infected with the Alpha variant, according to a great new British study.

The study, published Friday in The Lancet Infectious Diseases, is an analysis of more than 40,000 coronavirus infections in England. This adds to the evidence suggesting that Delta may cause more severe disease than the other variants.

Less than 2% of infections have occurred in fully vaccinated people, and there was not enough data to draw firm conclusions about the risks of hospitalization in this particular group, the researchers said.

“The main point to remember is that if you have an unvaccinated or only partially vaccinated population, an outbreak of Delta can place a greater burden on hospitals and healthcare than an outbreak of Alpha,” Anne said. Presanis, senior statistician at the University of Cambridge and one of the lead authors of the study.

The Delta variant, which was first detected in India, is about twice as infectious as the original virus and up to 60 percent more transmissible than the Alpha variant, which was first identified in Britain.

In the new study, researchers analyzed health data from people who tested positive for the virus in England between March 29 and May 23, as Delta spread across the country. Seventy-four percent of people were not vaccinated, 24.2 percent were partially vaccinated, and 1.8 percent were fully vaccinated.

Genetic sequencing confirmed that 80% of study participants were infected with the Alpha variant, while 20% were infected with Delta.

For both groups, the risk of hospitalization was low, the researchers found. Only 2.2% of people with Alpha and 2.3% of those with Delta were admitted to hospital within two weeks of testing positive for the virus.

But people infected with the Delta variant were on average younger. When the researchers adjusted for age and other factors known to affect the severity of the disease, they found that when Delta caused the infection, the overall risk of being hospitalized was more than twice as high.

When the researchers disaggregated the data by vaccination status, they confirmed that Delta doubled the risk of hospitalization for people who had not been vaccinated or had received their first dose less than three weeks before. The fully vaccinated group was too small to be rigorously analyzed on its own, the researchers said.

“We already know that vaccination offers excellent protection against Delta, and as this variant accounts for over 98% of Covid-19 cases in the UK, it is vital that those who have not received two doses of the vaccine should do as soon as possible, ”said Dr Gavin Dabrera, lead author of the article and epidemiologist at Public Health England, in a statement.

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Newsrust - US Top News: The risk of hospitalization doubles with the Delta variant, according to a study
The risk of hospitalization doubles with the Delta variant, according to a study
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