Pfizer COVID-19 Vaccine 97 Percent Effective Against Symptomatic Disease
FRIDAY, March 12, 2021 -- The Pfizer COVID-19 vaccine is 97 percent effective in preventing symptomatic disease in actual use, which is better than previously thought.
The analysis of data gathered from Jan. 17 to March 6 from Israel's vaccination campaign also showed that the vaccine is 94 percent effective against asymptomatic disease, CBS News reported.
"We are extremely encouraged that the real-world effectiveness data coming from Israel are confirming the high efficacy demonstrated in our phase 3 clinical trial and showing the significant impact of the vaccine in preventing severe disease and deaths due to COVID-19," said Luis Jodar, Ph.D., senior vice president and chief medical officer of Pfizer Vaccines.
A previous real-world study revealed that the vaccine was 94 percent effective against symptomatic disease and 92 percent effective against asymptomatic disease, CBS News reported.
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Posted: March 2021
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