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The effectiveness of COVID-19 vaccines produced by Pfizer/BioNTech, Moderna, and Johnson & Johnson dropped dramatically as the Delta variant swept the United States, a study of almost 800,000 veterans found. ....
The U.S. Food and Drug Administration issued an emergency use authorization for the third COVID-19 vaccine developed by Johnson & Johnson. Still, how could this happen? Blais never stopped wearing personal protective equipment at work or masking outside her home. She got infected where she least expected it. I had a direct exposure from a close family member, she said. Blais was hesitant to share her experience because she was concerned about the comments anti-vaxxers may make and that people who are vaccine-hesitant may become even more so. But, doctors say what happened to Blais is proof the vaccine works. ....
The U.S. Food and Drug Administration issued an emergency use authorization for the third COVID-19 vaccine developed by Johnson & Johnson. Still, how could this happen? Blais never stopped wearing personal protective equipment at work or masking outside her home. She got infected where she least expected it. I had a direct exposure from a close family member, she said. Blais was hesitant to share her experience because she was concerned about the comments anti-vaxxers may make and that people who are vaccine-hesitant may become even more so. But, doctors say what happened to Blais is proof the vaccine works. ....
Coronavirus: Pfizer vaccine 94% effective, confirms mass real-world study The research involved about 12 lakh people in Israel. File photo: Syringes prepared for the Pfizer-BioNTech coronavirus vaccine. | Hannibal Hanschke/Reuters A big real-world test of Pfizer and BioNTech’s coronavirus vaccine has shown that the jab is 94% effective. The results of the study, which involved about 12 lakh people in Israel, were published in the New England Journal of Medicine on Wednesday . The results are very close to the vaccine’s phase 3 clinical trials last year, which found that two doses were 95% effective. The study estimated the vaccine to be 57% effective against the infection two to three weeks after the first dose and 94% effective a week or longer after the second dose. It involved 6 lakh inoculated people and a similarly-sized control group of unvaccinated participants. ....
The study looked at data of more than half a million people who received two shots of the jab. It compared 600,000 patients given two doses of the jab against a similar-sized group who had matching medical histories but were not inoculated. Researchers from Israel’s largest healthcare provider, Clalit, who led the project, said the Pfizer jab was “even more effective two weeks or more after the second show” and worked in all age groups. The findings could assist in UK lockdown-easing plans, as ministers look for evidence the vaccine rollout scheme is working before lifting restrictions. Covid vaccine latest: Two doses of the Pfizer vaccine has been found to be 94% effective in over-55s (Image: GETTY) ....