Single Pfizer, Modern Vaccine Supplements Are Approximately Two Effective

Single doses of Pfizer and Modern vaccines are more than 92 percent effective in preventing COVID-19 disease after two weeks, Canadian researchers are now saying.

The FDA’s own data shows that a single shot of the Bayonet-Pfizer vaccine is 92.6 percent effective after two weeks, and a modern modern jab is 92.1 percent effective, researchers note In the New England Journal of Medicine.

According to a separate study based on real-world data from Israel’s vaccination program, Pfizer’s second shot of the vaccine increases efficacy by only 94 percent.

And so the prescribed second dose should be given instead of priority groups that are still waiting for their first shot, “the researchers noted, given the current lack of vaccination.”

The researchers said in a letter to the editors of NEJM, “With such a highly protective first dose, the benefits from a rare supply of the vaccine can be increased as long as all priority group members are reduced to Do not give a single dose. “

“There may be uncertainty about the duration of protection with a single dose,” the researchers said.

“But administering a second dose within 1 month after the first, as recommended, provides little additional benefit in the short term, while those at high risk who could have the first dose with that vaccine supply, Are completely insecure. “

A health worker receives a dose of the Pfizer-BioNotech vaccine against COVID-19 on February 18, 2021.
A health worker receives a dose of the Pfizer-BioNotech vaccine against COVID-19 on February 18, 2021.
RAUL ARBOLEDA / AFP via Getty Image

The letter was sent to Dr. of the British Columbia Center for Disease Control in Vancouver. Danuta m. Skowronski and Dr. of the Institut National de Santé Public du Québec in Quebec City. Gaston de Ceres wrote.

NEJM said in a letter replying to the two researchers that Pfizer said that “regaining alternative doses” still needed to be evaluated.

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