TEL AVIV: The Pfizer-BioNTech Covid-19 vaccine appears to reduce symptomatic coronavirus diseases by more than 90 percent in the real world, according to Israeli researchers.
According to CNN, the preliminary findings published Monday suggest that the vaccine remains highly effective in a major vaccine campaign – outside of carefully controlled clinical trial conditions.
The Clalit Research Institute analyzed data on about 1.2 million people, about half of whom had received the Pfizer-BioNTech vaccine. Researchers compared patients who received the vaccine with like-minded people who did not.
Symbolic Covid-19 levels – meaning people infected with the coronavirus and feeling unwell – fell by 94 per cent among people who received two doses of the vaccine, according to a Clalit news release . The rate of serious illness fell by 92 per cent.
CNN also said that although full details of the study were not immediately available, the research had not yet been peer-reviewed. However, the findings are consistent with data from Pfizer’s own vaccine test, which found that the vaccine provided 95 percent protection against a typical Covid-19.
Researchers in a Pfizer trial randomly assigned patients to receive the vaccine or placebo. They then looked to see how many people got sick in each group and found that the vaccine significantly reduced illness.
The company study was a randomized controlled trial. The Israeli study, on the other hand, was observational, meaning that researchers did not randomly select who received the vaccine and who did not.
“That can cause problems; people who choose to be vaccinated, for example, may be more likely to take other steps to protect themselves. Researchers said they tried to account for it. However, observational studies are important because they can provide unique insights into how well vaccines protect people under real – world conditions, “CNN said.
According to CNN, the preliminary findings published Monday suggest that the vaccine remains highly effective in a major vaccine campaign – outside of carefully controlled clinical trial conditions.
The Clalit Research Institute analyzed data on about 1.2 million people, about half of whom had received the Pfizer-BioNTech vaccine. Researchers compared patients who received the vaccine with like-minded people who did not.
Symbolic Covid-19 levels – meaning people infected with the coronavirus and feeling unwell – fell by 94 per cent among people who received two doses of the vaccine, according to a Clalit news release . The rate of serious illness fell by 92 per cent.
CNN also said that although full details of the study were not immediately available, the research had not yet been peer-reviewed. However, the findings are consistent with data from Pfizer’s own vaccine test, which found that the vaccine provided 95 percent protection against a typical Covid-19.
Researchers in a Pfizer trial randomly assigned patients to receive the vaccine or placebo. They then looked to see how many people got sick in each group and found that the vaccine significantly reduced illness.
The company study was a randomized controlled trial. The Israeli study, on the other hand, was observational, meaning that researchers did not randomly select who received the vaccine and who did not.
“That can cause problems; people who choose to be vaccinated, for example, may be more likely to take other steps to protect themselves. Researchers said they tried to account for it. However, observational studies are important because they can provide unique insights into how well vaccines protect people under real – world conditions, “CNN said.