<p>Promising vaccine candidates are now showing high efficacy, but how is this value calculated? ThePrint’s Sandhya Ramesh explains the maths behind efficacy calculations and why they’re not as simple as they seem.</p>

Promising vaccine candidates are now showing high efficacy, but how is this value calculated? ThePrint’s Sandhya Ramesh explains the maths behind efficacy calculations and why they’re not as simple as they seem.

Pure Science: How is vaccine efficacy calculated

ThePrint.in is a news, analysis, opinion & knowledge media company that sharply focuses on politics, policy, government and governance. 
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ThePrint.in is a news, analysis, opinion & knowledge media company that sharply focuses on politics, policy, government and governance. Start your mornings with our journalists who bring you the big story of the day in ThePrintAM. ThePrintPod offers you our special reports and opinions for when you‘re on the go. End your day with our most popular show ‘Cut The Clutter’ by Editor-in-Chief Shekhar Gupta. But that’s not all. We also have Pure Science, National Interest, ThePrint Uninterrupted, Global Print, Politically Correct and PoliTricks.

ThePrint.in is a news, analysis, opinion &amp; knowledge media company that sharply focuses on politics, policy, government and governance. 
Start your mornings with our journalists who bring you the big story of the day in ThePrintAM.
ThePrintPod offers you our special reports and opinions for when you‘re on the go.
End your day with our most popular show ‘Cut The Clutter’ by Editor-in-Chief Shekhar Gupta.
But that’s not all. We also have Pure Science, National Interest, ThePrint Uninterrupted, Global Print, Politically Correct and PoliTricks.

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Pure Science: How is vaccine efficacy calculated

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