Understanding coronavirus vaccine efficacy Updated: 9:38 AM EST Feb 24, 2021 Updated: 9:38 AM EST Feb 24, 2021
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Show Transcript WHAT WE REALLY MEAN IS HOW MUCH DID THE VACCINE REDUCE THE RISK OF BECOMING INFECTED OR DEVELOPING DISEASE? EMILY: DR. DANIEL KURITZKES IS CHIEF OF THE DIVISION OF INFECTIOUS DISEASES AT BRIGHAM AND WOMEN’S HOSPITAL. THAT RISK REDUCTION VARIES AMONG THE COMPANIES WITH AUTHORIZED CORONAVIRUS VACCINES AND CANDIDATES. AND WHILE OVERALL EFFICACY ALSO VARIES BY GEOGRAPHY IN THE U.S., , MODERNA’S VACCINE IS 94.1% EFFECTIVE AT PREVENTING DISEASE. PFIZER’S OPTION, 95%. JOHNSON & JOHNSON’S VACCINE CANDIDATE IS LOWER AT 72%. DR. DANIEL KURITZKES: THESE VACCINES ARE ALL MUCH MORE EFFECTIVE THAN WHAT WE ARE USED TO SEEING WITH THE FLU VACCINE EMILY: THE FLU VACCINE IS AROUND 40%-60% EFFECTIVE WHEN IT’S WELL-MATCHED TO THE MOST CIRCULATED VIRUS, ACCORDING TO THE CD WHEN IT COMES TO CORONAVIRUS VACCINES, DIRECT EFFICA
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