What’s causing rare allergic reactions to Pfizer’s vaccine?

Public health officials are investigating the cause of several severe allergic reactions that were reported among hundreds of thousands of people vaccinated with the Pfizer-BioNTech coronavirus vaccine last week.  As of Friday (Dec. 18), six people who received the jab in the U.S. developed anaphylaxis, or a severe allergic reaction that can be life-threatening if […]

How the FDA-authorized Moderna COVID-19 vaccine compares to Pfizer’s

A second coronavirus vaccine has now joined the fight against COVID-19 in the United States. On December 18, the U.S. Food and Drug Administration authorized Moderna’s vaccine for emergency use in people 18 years or older. The decision follows a thumbs-up vote from a panel of experts that convened on December 17 to discuss vaccine […]

What to know about Pfizer’s COVID-19 vaccine before it reaches you

Over the next several days, FedEx will ship 3 million doses to vaccination sites across the country and healthcare workers have already begun to receive their first doses. (Unsplash/) For many, if not most Americans, the wait for a vaccine to prevent COVID-19 has been a long and grueling one. While the development of COVID-19 […]

The FDA has authorized Pfizer’s COVID-19 vaccine. Now what?

Millions of Americans will soon be lining up for COVID-19 shots.  On December 11, the Food and Drug Administration granted emergency use authorization for the Pfizer-BioNTech vaccine for those age 16 and older. The decision comes as numbers of COVID-19 cases, hospitalizations and deaths have been rising at alarming rates. The United States recorded a […]

Experts recommend Pfizer’s COVID-19 vaccine to FDA for emergency use

The benefits of Pfizer-BioNTech’s COVID-19 vaccine outweigh its risks for emergency use in those 16 and older in the United States, a panel of vaccine experts told the Food and Drug Administration on December 10. The recommendation followed a daylong meeting the panel, the Vaccines and Related Biological Products Advisory Committee, held to discuss data […]

The FDA says Pfizer’s COVID vaccine is effective and safe

Experts will meet to review the vaccine on Thursday. (Unsplash/) The Food and Drug Administration (FDA) released an analysis of pharmaceutical company Pfizer’s COVID-19 vaccine data on Thursday morning. According to the report, the FDA has no specific concerns that would prevent authorization of the vaccine. Pfizer’s vaccine has not yet received an Emergency Use […]

Pfizer’s COVID-19 vaccine starts to work just 10 days after 1st dose

Pfizer’s new COVID-19 vaccine starts to protect people from the novel coronavirus just 10 days after the first dose, according to new documents from the U.S. Food and Drug Administration (FDA). The documents were released on Tuesday (Dec. 8), two days before a meeting of the FDA’s vaccine advisory panel, which will vote on whether […]

U.K. is first to clear Pfizer’s COVID-19 vaccine for emergency use

The United Kingdom became the first country to approve a fully tested COVID-19 vaccine for its citizens on December 2 when it OK’d Pfizer’s vaccine for emergency use. Russia and China have allowed emergency use of vaccines made in those countries, but did so before safety and effectiveness trials were completed (SN: 8/11/20; SN: 7/21/20). […]

Here’s why COVID-19 vaccines like Pfizer’s need to be kept so cold

Pfizer is racing to get approval for its COVID-19 vaccine, applying for emergency use authorization from the U.S. Food and Drug Administration on November 20. But the pharmaceutical giant faces a huge challenge in distributing its vaccine, which has to be kept an ultrafrosty –70° Celsius, requiring special storage freezers and shipping containers. It “has some unique […]

Pfizer’s COVID-19 vaccine is 90% effective, preliminary data show

The race to greenlight a COVID-19 vaccine in the United States has entered its final sprint, with one leading candidate becoming the first to release preliminary results showing its vaccine is more than 90 percent effective at preventing people from getting sick from the coronavirus. The long-awaited announcement came in a Nov. 9 news release […]