Pfizer's Early Data Shows Coronavirus Vaccine Is More Than 90% Effective - The New York... - 0 views
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The drug maker Pfizer announced on Monday that an early analysis of its coronavirus vaccine trial suggested the vaccine was robustly effective in preventing Covid-19, a promising development as the world has waited anxiously for any positive news about a pandemic that has killed more than 1.2 million people.
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The company said that the analysis found that the vaccine was more than 90 percent effective in preventing the disease among trial volunteers who had no evidence of prior coronavirus infection.
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Pfizer plans to ask the Food and Drug Administration for emergency authorization of the two-dose vaccine later this month, after it has collected the recommended two months of safety data. By the end of the year it will have manufactured enough doses to immunize 15 to 20 million people, company executives have said.
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Eleven vaccines are in late-stage trials, including four in the United States. Pfizer’s progress could bode well for Moderna’s vaccine, which uses similar technology. Moderna has said it could have early results later this month.
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Operation Warp Speed, the federal effort to rush a vaccine to market, has promised Pfizer $1.95 billion to deliver 100 million doses to the federal government, which will be given to Americans free of charge. But Dr. Jansen sought to distance the company from Operation Warp Speed and presidential politics, noting that the company — unlike the other vaccine front-runners — did not take any federal money to help pay for research and development.
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Work on the vaccine began in Mainz, Germany, in late January, when Ugur Sahin, the chief executive and co-founder of BioNTech, read about the virus in the Lancet that filled him with dread. “I almost instantly knew that this would affect us,” Mr. Sahin said in an interview. That same day, the first European cases were detected, in France.Mr. Sahin assembled a 40-person team to work on the vaccine. Many employees canceled vacations and Mr. Sahin authorized overtime pay. They called it Project Lightspeed.
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BioNTech used a technology that had never been approved for use in people. It takes genetic material called messenger RNA and injects it into muscle cells, which treat it like instructions for building a protein — a protein found on the surface of the coronavirus.
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Even before it began, the Trump Administration placed a bet that Pfizer and BioNTech would succeed, announcing its advance purchase deal on July 22. At the time, it was the largest such commitment from the U.S. government.
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As they descended toward a factory in Austria that would produce their vaccine, they discussed how to ensure a wary public would trust their vaccine. Days later, Pfizer organized an effort by major drug companies to pledge that any coronavirus vaccine would stand up to scientific scrutiny.
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Wide distribution of Pfizer’s vaccine will be a logistical challenge. Because it is made with mRNA, the doses will need to be kept at ultra cold temperatures. While Pfizer has developed a special cooler to transport the vaccine, equipped with GPS-enabled thermal sensors, it remains unclear where people will receive the shots, and what role the government will play in distribution. Adding to the challenge, people will need to return three weeks later for a second dose to complete the immunization.