Delta variant infections double every 11 days in England, study finds


The REACT-1 study is an ongoing pandemic study, led by Imperial and carried out in partnership with Ipsos MORI, which tracks current coronavirus infections in the community by testing randomly selected individuals each month over a period of approximately two weeks.

For this last cycle, 108,911 people swab at home and their samples were analyzed by PCR. 135 of them were positive, of which the vast majority (around 90%) were the Delta variant at the end of the study cycle.

This, he notes, is consistent with data from Public Health England (PHE) indicating that the variant accounts for 90% of infections.

In the study’s previous round of testing, infection patterns were quite similar across the country, but the latest data showed substantial regional variation.

The highest prevalence was found in the Northwest at 0.26%, down from 0.11% in the previous cycle, while the Southwest had the lowest at 0.05%, down slightly from at 0.07%.

The study also followed the relationship between infections, hospitalizations and deaths in different age groups.

Since February, the link between infections, hospitalizations and deaths has weakened among people aged 65 and over, while there has been a recent reversal of these trends for those under 65, leading to a recent reversal of these trends. probably reflects lower vaccination rates in this group.



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