Symptomatic cases decrease by 94% with Pfizer vaccine, study shows

According to a new study, symptomatic cases of COVID-19 decreased by two percent after two doses of Pfizer vaccine.

Israel’s largest healthcare provider, Clalit, looked at data from more than 600,000 people in what is believed to be the country’s largest study to date.

The study also found that people were 92 percent less likely to develop serious illnesses due to the vaccination.

“It shows unequivocally that a week after the second dose, Pfizer’s coronavirus vaccine is extremely effective in the real world, just as it appears in the clinical study,” said Ran Balicer, Clalit’s head of innovation.

The shot becomes even more effective even two or more weeks after the second dose, Balicer said.

Researchers at the Weizmann Institute of Science also reported Sunday that, for the first time, there was a significant decrease in hospitalizations and serious illnesses among Israelis aged 55 or older.

A healthcare professional gives a dose of Pfizer-BioNtech COVID-19 vaccine at Clalit Health Service
On February 1, 2021, a healthcare professional donates a dose of Pfizer-BioNtech COVID-19 vaccine to Clalit Health Service in the Israeli city of Petah Tikva.
JACK GUEZ / AFP via Getty Images

The first age group to be vaccinated in the country were people 60 years and older.

With Post threads

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