Pfizer Covid-19 vaccine works well in big ‘real world’ test

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Real-world test of Pfizer’s Covid-19 vaccine in more than 500,000 people shows it's very effective at preventing serious illness or death, even after one dose. “This is immensely reassuring ... better than I would have guessed,” a Mayo Clinic doctor says.

Neither doctor had a role in the Israel study but both are involved in other coronavirus vaccine work., as the United Kingdom is trying, or giving one dose instead of two to people who have already had COVID-19, as France is doing, to stretch limited supplies.

“I would rather see 100 million people have one dose than to see 50 million people have two doses,” Creech said. “I see a lot of encouragement on one dose” in the results from Israel, which were published by theThe vaccine, made by Pfizer and its German partner BioNTech, is given as two shots, three weeks apart, in most countries.

The study was led by researchers from the Clalit Research Institute and Ben-Gurion University of the Negev in Israel, with Harvard University in the U.S. It did not report on safety of the vaccine, just effectiveness, but no unexpected problems arose in previous testing. Researchers compared nearly 600,000 people 16 and older in Israel’s largest health care organization who were given shots in December or January to an equal number of people of similar age, sex and health who did not receive vaccine. None of the participants had previously tested positive for the virus.

The vaccine was estimated to be 57 percent effective at preventing any symptoms of COVID-19 two to three weeks after the first dose, and 94 percent a week or more after the second dose.Effectiveness was 74 percent after one shot and 87 percent after two for preventing hospitalization, and 46 percent and 92 percent for preventing confirmed infection. Reducing infections gives hope that the vaccine may curb spread of the virus, but this type of study can’t determine if that’s the case.

 

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u kom vremenu je istraživanje provedeno? Godinu, dvije, četiri ili mjesec dana?

Государственные каналы в России постоянно говорят о том, как опасна вакцина от Пфайзер и что это становится причиной многих смертей

But how long will one jab afford that level of protection? In UK’s case the second jab will be given 12 weeks later - NOT the interval of 3-4 weeks Pfizer defined from their exhaustive study (prior to being granted a licence on efficacy of stated information)

Look, I want a vaccine that prevents infection, not one that lowers mortality rate of it. This disease causes long-term issues, even in minor cases. Oh, I plan on getting vaccinated. I just wish these vaccines actually protected against infection.

With sincerity and gratitude in my heart I’m doing this testimony so other people will know that this platform is real and legit, I’m grateful markdonaldAmeli

How soon after the vaccine is administered?

But what about its efficacy against covid variants?

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