Covid vaccines may not stop transmission of the Delta variant


People who have been vaccinated against the coronavirus may be able to spread the Delta variant just as easily as those who have not been injected, according to preliminary analyzes.

While the vaccine appears to reduce a person’s overall risk of becoming infected, once they are, there is a limited difference in viral load between the vaccinated and the unvaccinated – suggesting a limited difference in terms of infection. infectivity, a report from Public Health England (PHE) in Variants Underlined.

In a statement, PHE said on Friday: “Some initial findings (…) indicate that virus levels in those infected with Delta who have previously been vaccinated may be similar to levels found in unvaccinated people.

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“This may have implications for the infectivity of people, whether or not they have been vaccinated.”

However, PHE cautioned that the data is an “early exploratory analysis” and insisted that “further targeted studies” would be needed to confirm whether this is the case or not.

The report also confirmed that the Delta variant – first identified in India – accounted for around 99% of cases from July 25 to 31.

Of the Delta cases that have been hospitalized since July 19, just over half, 55.1%, were unvaccinated, while 34.9% had received two doses of a Covid-19 vaccine.

Dr Jenny Harries, head of the UK Health Security Agency, told Sky News: “We also have to remember that vaccines do not eliminate all risks: it is always possible to get sick with Covid and infect them. others.”

It follows another report from PHE yesterday which found that more than 66,900 hospitalizations were said to have been avoided by the deployment of the coronavirus vaccine in England.

The new figure – up more than 14,000 from the previous estimate – came as the new NHS England boss urged young people to pass their jab amid a warning that more than a fifth of people admitted to hospital with Covid-19 are 18 years old. and 34.

NHS chief executive Amanda Pritchard said there were more than 5,000 people “seriously ill” in hospital with Covid, adding that “more than a fifth of those admitted are young people.”

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