People get a dose of Pfizer-BioNTech Covid-19 vaccine inside a Covid-19 mass vaccination center in Rabin Square in Tel Aviv, Israel, on Monday 4th January 2020.
Kobi Wolf | Bloomberg | .
Pfizer and BioNTech’s Covid-19 vaccine is just 39% effective in Israel, where the delta variant is the dominant strain, but still provides a strong protection against serious illness and hospitalization, according to a new report by the country’s Ministry of Health.
The data of effectiveness, which is based on an unspecified number of people between June 20 and July 17, is down from a previous estimate of 64% two weeks ago and conflicts with data out of the United Kingdom that found the shot was 88% effective against symptomatic disease caused from the variant.
However, the two-dose vaccine still works very well in to prevent people from becoming seriously ill, demonstrating an efficacy of 88% against hospitalization and efficacy of 91% against serious illness, according to Israeli data released Thursday.
“We must be aware that, with time, effectiveness of these vaccines could decrease, “said Dr. Isaac Bogoch, an infectious disease professor at the University of Toronto.
He pointed out that the shots are still very effective in prevent serious infections by helping hospital systems not to be too overwhelmed towards the colder months. That said, “we are still in the Covid era and anything can happen, “he said.
“We have to be prepared and we have to be agile for that people May need a booster at some point, “he has added. “This close surveillance that is happening in countries like Israel, the United Kingdom and other parts of the world it will be very useful in guide policy if and when we do need booster “.
The delta variant, already in more of 104 countries, concerns health officials in the United States as they see it more revolutionary infections, which occur in fully vaccinated people, even if I am – even if they are more mild.
White House chief medical officer Dr. Anthony Fauci said he is fully vaccinated people could be want to consider wearing masks in house as a precaution against the fast-spreading variant in the United States
The health experts are concerned on the fall season, when delta is expected hit States with the lowest vaccination rates are the most difficult, unless those states and companies reintroduce the mask rules, capacity limits and more public health measures that they have widely adopted back.
“This is something we obviously don’t do want see, “Fauci said Wednesday, noting so-called breakthrough infections.” This virus is clearly different from the viruses and variants we’ve had experience with Before. It has an extraordinary ability of transmit from person to person “.
Dr. Paolo Offit, who advises the FDA on Covid vaccines, said while vaccines still provide excellent protection against severe illness e death, they might not work also against mild cases or spreading the disease to others.
he urged more Americans get vaccinated, saying that delta is a highly contagious virus and that the shots will help people from becoming seriously ill. Currently, less than half of the United States population is fully vaccinated, according to data compiled by the CDC.
“This is rich and fertile fertile soil for the virus to continue to reproduce and continue to create variants that eventually become more And more resistant to vaccines or natural infections, “he said.
WHO officials said Monday that longer people around world remain not vaccinated e social the mixing continues, the higher the risk of a more dangerous variant to emerge.
The report out of Israel, which has started vaccinating its own population after you of many others countries, is likely to reinforce the arguments of drug manufacturers that people at the end need to get booster shots to protect against emerging variants.
Pfizer said earlier this month that it is starting to see a drop in immunity from its two-dose vaccine, and now plans seek authorization from the Food and Drug Administration for a booster dose. However, federal officials say fully vaccinated Americans don’t need further shots in this moment.
In a statement to CNBC, Pfizer said so remains confident that his two-dose regimen is protective against the coronavirus and its variants.
However, he said a third dose might be useful after his analysis phase three studies showed a decline in effectiveness against symptomatic infection after four a six months.
“Initial data of a third dose of the current vaccine demonstrates that a booster dose administered at least 6 months after the second the dose produces high neutralization titers against the wild type and the Beta, which are 5 to 10 times higher that’s after two primary doses, “the company said.
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