Delta variant ‘may be 46pc more likely to cause reinfection’


THE Delta variant of coronavirus may be 46pc more likely to cause reinfection than the Alpha variant first identified in the UK, new figures suggest.

ata from Public Health England (PHE) shows that, while the overall chances of getting reinfected are very low, the Delta variant, first identified in India and which accounts for around 99pc of cases in the UK, poses a higher risk.

It came as new figures showed the breakdown of how many people in hospital with the Delta variant in the UK have had one or both doses of a Covid-19 vaccine.

From June 21 to July 19, 1,788 people were admitted to hospital there after testing positive for Delta.

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Of these, 970 (54pc) were unvaccinated, while 530 (30pc) had received both doses.

In total, 3,692 people have so far been admitted to hospital with the Delta variant, of whom 2,152 (58pc) were unvaccinated and 843 (23pc) were fully vaccinated.

From February to mid-July, among the under-50s who had received both vaccines four patients died with the Delta variant out of 15,346 cases in this group (0.02pc).

There have been 34 deaths among the unvaccinated in the same age group, among 119,063 Delta cases (0.02pc).

Meanwhile, among the over-50s who have received both vaccinations there have been 220 deaths out of 13,427 cases (1.64pc).

And there have been 131 deaths among the unvaccinated over-50s among 2,337 cases (5.6pc).

On the topic of reinfections, PHE experts looked at the PCR test results for a group of people, both vaccinated and unvaccinated, who had a positive Covid test at least 90 days earlier.

There were 83,197 people who tested positive in the 11-week period of the analysis, of whom 980 (1.2pc) had possible reinfections.

Overall, the team found that the chance of reinfection with the Delta variant was 46pc higher compared to the Alpha variant.

PHE said that further work is now being undertaken to examine the risk of reinfection.

The PHE briefing also noted that the Delta variant, which has spread globally, currently accounts for around 99pc of cases across the UK.

The Beta variant, first identified in South Africa, currently accounts for less than 0.2pc of cases in the UK.

Dr Jenny Harries, chief executive of the UK Health Security Agency, said: “This most recent hospitalisation data shows once again just how crucial vaccination is in protecting us from severe illness and death.

“Two doses of vaccine are far more effective against Covid-19 than a single dose, so please make sure that you come forward to get your second dose as soon as you are invited.

“As we emerge from restrictions and vaccine coverage continues to rise, it is important to remember that, while the protection provided by vaccination is excellent, it is not total.

“It is still as important as ever that we continue to exercise caution.

“Remember that meeting outside is safer than inside, get two doses of the vaccine as soon as you can, isolate if you are told to by NHS Test and Trace, and if you show symptoms stay home and get a PCR test.

“Covid-19 has not gone away and we must all continue to play our part.”

Visit our Covid-19 vaccine dashboard for updates on the roll out of the vaccination program and the rate of Coronavirus cases Ireland



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