Federal health officials said one of the reasons they announced the recall plan was to stay ahead of the virus and be prepared for when vaccines may no longer protect as well against the virus. severe cases of Covid-19. These officials, including Dr Anthony S. Fauci, Mr Biden’s chief medical adviser, relied heavily on data presented to them by Israeli officials, who defended the first aggressive recall campaign of this country.
Their data, said Dr Fauci and other administration officials, shows a marked decrease in immunity to infections, with increased protection against booster doses, but only shows signs of a decrease. immunity against hospitalization in people under 65 years of age.
But in the new review, Dr Krause, Dr Gruber and other vaccine experts said more time and public discussion, as well as better studies, are needed to determine whether boosters are needed for the population. general. They also said that whatever benefit vaccines might offer would not outweigh the benefit of using them to protect the billions of people around the world who remain unvaccinated.
The World Health Organization has called on rich countries to halt the administration of additional vaccines to healthy patients until at least the end of the year, to allow each country to immunize at least 40% of his population. Every unvaccinated person offers the virus the chance to transform into new, potentially dangerous variants, scientists have warned.
The review authors said, however, that additional injections could be helpful for some people with weakened immune systems – a step already cleared by the FDA.
“As more and more information becomes available, it may first provide evidence that strengthening is needed in certain subpopulations,” they wrote. “However, these high-stakes decisions should be based on publicly available, peer-reviewed data and solid international scientific discussion.”
They widely disdained Israeli data and other studies that some health officials say argue for more imminent shooting. They said some Israeli evidence was gathered just about a week after the third dose and may not hold up over time, and that “a very short-term protective effect would not necessarily imply a valid long-term benefit.” .