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Johnson & Johnson's Covid-19 vaccine, how it works and why it matters

January 29, 2021. Summarized by summa-bot.

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AURORA, CO - DECEMBER 15: Rocky Mountain Regional VA Medical Center investigational pharmacy technician Sara Berech prepares a dose of the Johnson & Johnson COVID-19 vaccine for a clinical trial on December 15, 2020 in Aurora, Colorado. The Johnson & Johnson vaccine could be submitted for emergency use by late January and is the only vaccine among leading candidates given as a single dose. (Photo by Michael Ciaglo/Getty Images)

A third Covid-19 vaccine, one made by Johnson & Johnson, could be authorized for use in the United States in the near future. Data about the single-shot vaccine released Friday, and the company is now collating its data to apply to the US Food and Drug Administration for emergency use authorization. The vaccine was made through a collaboration of J&J's Belgium-based vaccine division, Janssen Pharmaceutical, and Beth Israel Deaconess Medical Center, and it works a bit differently.

(CNN)A third Covid-19 vaccine, one made by Johnson & Johnson, could be authorized for use in the United States in the near future.

Data about the single-shot vaccine released Friday, and the company is now collating its data to apply to the US Food and Drug Administration for emergency use authorization. The vaccine was made through a collaboration of J&J's Belgium-based vaccine division, Janssen Pharmaceutical, and Beth Israel Deaconess Medical Center, and it works a bit differently.

Johnson & Johnson's Covid-19 single-shot vaccine was shown to be 66% effective in preventing moderate and severe disease in a global Phase 3 trial, the company announced Friday.

Dr. Paul Offit, the director of the Vaccine Education Center at Children's Hospital of Philadelphia, said the Moderna, Pfizer and J&J Covid-19 vaccines all take a similar approach, but there is a small difference with the J&J approach.

The J&J vaccine is the only Covid-19 vaccine so far to be given in a single dose.

"If it's a single-dose vaccine, then a billion vaccine doses would translate into a billion people vaccinated," said Dr. Dan Barouch of Harvard Medical School, who helped develop Johnson & Johnson's vaccine candidate on CNN's Coronavirus Fact vs.

After the meeting, FDA staff members consider the committee input along with the agency's evaluation of the company's data and will make a decision about whether the vaccine should by authorized.

With the Pfizer vaccine, it took a little over three weeks from the time the company submitted its data to an EUA.

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