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Nick Triggle, Michelle Roberts BBC News
Courtesy image, fake images
A single dose of Oxford / AstraZeneca or Pfizer / Biontech’s new coronavirus vaccine can reduce the risk of exacerbation in people over 80 years of age by more than 80%, according to a study conducted by public health authorities in England. 1st.
The Pfizer vaccine, which started in the UK a month before AstraZeneca, reportedly reduced mortality by 83%. This is also based on data from people 80 years of age or older who were initially vaccinated.
In addition, three weeks after the first vaccination, the risk of developing the disease in people older than 70 years was reduced by approximately 60%.
“You can reach a very different world”
Government scientific advisers welcomed PHE’s announcement, but emphasized that two doses would be needed to obtain the most effective protection against the new COVID-19 coronavirus infection.
Prior to this, Scottish health officials in the UK have published similar “excellent” findings.
British government health minister Matt Hancock told reporters at the prime minister’s residence on day 1 that the latest results from the vaccination survey were “very powerful.” “This may be why the number of new COVID-19 patients needing intensive care has dropped to single digits in the UK in recent weeks,” he said.
Professor Jonathan Van Tam, England’s deputy chief medical officer, who attended the press conference, said the vaccination project “will allow us to reach a very different world in the coming months.” Welcome to see this data.
He stressed the importance of the second vaccination and said it was “absolutely imperative” to continue.
“The immune response matures” with 2 doses
Professor Van Tam said that the second vaccine “matures the immune response, possibly expands the immune system and almost certainly prolongs the immune system” compared to the single vaccination. It is extremely high. “
To date, more than 20 million people, or more than 30% of the adult population, have been vaccinated in the UK for the first time.
On the other hand, according to the British government’s March 1 statistics, 104 people died within 28 days of testing positive for the virus, and 5,455 were recently confirmed.
AstraZeneca is also effective for the elderly.
Professor Van Tam said the decision to provide the Oxford / AstraZeneca vaccine to the elderly was “clearly shown.”
Professor Van Tam said that the British health authorities’ judgment was “impossible” that the vaccine would only work for young people. He also said the UK data should be of interest to other countries.
Dr. Mary Ramsey, chief of vaccination at PHE, said the vaccine has reduced the number of people infected and has accumulated evidence that it has saved lives.
“More data will come out in the future, but the results are reliable and we are increasingly confident that the vaccine is making concrete changes,” he said.
However, it is not yet clear how effective the current vaccine will be for the “E484 mutation” identified in Brazil and recently confirmed in the UK.
