Wednesday, February 24, 2021

The Pfizer vaccine also blocks the transmission of the virus, according to an Israeli study


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The Pfizer / BioNTech vaccine is effective at 89.4 percent in preventing the vaccinated person from passing the infection, according to an Israeli study.

Or not quite a study, but just a study outline that started to spread on Twitter. The writing has not yet undergone a professional inventory and has not been published in a scientific journal, but its validity has been confirmed by a source familiar with the work. This is an observational research conducted jointly with the Israeli Ministry of Health.

If the credibility of the study is scientifically recognized, it is good news because it is important in reducing the viral curve that vaccinees not only do not get sick, but do not pass the disease on to others if they go through it asymptomatically.

Spokesmen for Pfizer and BioNTech did not want to comment on the study’s allegations.

A professor, Zoe McLaren, told Bloomberg that the study did not take into account certain testing differences, so the results may not be accurate either.

“The result overestimates how much Pfizer vaccine reduces the transmission of infection”

– He told. The study compares the number of reported positive cases between vaccinated and non-vaccinated, but does not take into account that who is vaccinated is less likely to go for testing. Therefore, the research underestimates the number of people vaccinated but still infected, as anyone who is vaccinated and asymptomatically ill will not be tested, so no infection is detected.

“This means that with less than 89.4 percent effectiveness, the vaccine prevents further infection. How much slower? We need more data to say that. But I think if we have clearer data, it will also turn out to be this vaccine reduces further infection. And that would be very good news. “

(Bloomberg)





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