Vaccines that specifically target the delta variant may now be needed, researchers leading a large English study on COVID vaccinations said, which is fast contagious due to its ability to infect immunocompromised people, as well as the potential for higher severity.
The third wave of cases in the UK was driven by the delta strain among unvaccinated people, particularly those aged 12 to 24, as well as among some people who had already been vaccinated, according to the authors of a study that used a sample. from about 98
thousand people in England. The researchers estimated that the effectiveness of vaccines in stopping infection during the study period fell to 49 percent, compared to 64 percent in the previous month. Protection from developing symptoms of the emerging coronavirus (Covid) reached 59 percent, up from 83 percent previously.
The researchers noted that “development of Delta vaccines may be warranted” in light of evidence that the strain’s protein peak has mutated to the point where antibodies from current injections are less effective.
The US, UK and Israel are among the most vaccinated countries in the world, but all have seen sudden increases in COVID cases and hospitalizations related to the Delta strain. Health officials in the American Federation said they are appealing to undecided people to get vaccinated to try to control the spread of the virus, which is likely to lead to more dangerous mutations.
Despite the losses in efficacy, current vaccines continue to provide a relatively high degree of protection, say researchers from institutions across the UK. According to the study, fully vaccinated people were three times less likely to contract delta than their unvaccinated peers, and less likely to develop symptomatic COVID-19 episodes or pass the virus on to others if they became infected.
The study, called React-1, looked at COVID test results from June 24 to July 12. The period roughly corresponds to an increase in infections in the UK, where the Delta variant has replaced the alpha strain that was first discovered in the south of the country and caused atrocities last winter.
Progressive infection among fully vaccinated people is becoming an increasingly important problem in countries with high vaccination rates. The authors noted that these concerns still affect only a small part of the world, with only 13 percent of people being fully vaccinated globally, and most of them in the developed world.
Infections during the study period focused more than ever on the nation’s youth, with about half of the positive swabs coming from people ages 5 to 24. This age group makes up just a quarter of England’s population, according to the report, which has not yet been peer-reviewed.
Breakdown by age suggests that interventions targeting young people could have a “disproportionate” effect on slowing the waves of COVID, the authors wrote. By vaccinating people aged 12 to 17, for example, health officials can “significantly reduce the potential for transmission in the fall when levels of social mixing are increased,” the authors said.
Health and Social Care Minister Sajid said: “The launch of our vaccination is to build a defensive wall that means we can carefully ease restrictions and go back to the things we love, but we have to be careful as we learn to live with this virus.” Javed. In a statement in response to the report.
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