A study shows that unvaccinated people are more likely to need a hospital bed.
The Delta variant of SARS-CoV-2 doubles the hospitalization risk compared with the Alpha variant, which was first detected in the United Kingdom.
A recent large study conducted in the United Kingdom shows that unvaccinated people have highest risk of hospitalization.
However, the research also shows that people who were not fully or even fully vaccinated could also require hospital admission, although the numbers are considerably lower.
Research on the risk of hospitalization due to the Delta variant was carried out by scientists from the United Kingdom’s National Health Service and the University of Cambridge.
The results were published on August 30, in the latest issue of The Lancet Infectious Diseases journal.
The medical records of 43,338 people who had tested positive for Covid-19 in the United Kingdom between March 29 and May 23 were analyzed for the study.
20% of the total number of cases analyzed were people infected with the Delta variant of Covid-19, while the rest were Alpha variant cases.
The study shows that one in 50 people infected with Covid-19 was admitted to hospital in the 14 days following a positive result.
Results per variant show that only 2.2% of those hospitalized were infected with the Alpha variant, while 2.3% of those admitted were suffering from the Delta variant.
“This study confirms previous findings that people infected with Delta are significantly more likely to require hospitalization,” said Gavin Dabrera, co-author of the study.
In order to determine the increased hospitalization risk for the Delta variant, the research group considered factors such as a predisposition to develop severe symptoms due to age, ethnic origin, and vaccination status.
Their conclusions reveal that the hospitalization risk is 2.26 times higher for Covid-19 infections with the Delta variant.
The study is one of the largest conducted in the United Kingdom, which is one of the countries recently affected by a wave of Delta variant infections.
Their results confirm that complete vaccination with either a single dose or double dose (depending on the type of vaccine), continues to provide very effective protection against both symptomatic infection and hospitalization.
These data were confirmed for both Delta and Alpha variant infections.
The data confirmed the research team’s conclusions about the hospitalization risk for three different scenarios: fully vaccinated, not fully vaccinated, and unvaccinated people.