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The Times

If I've already had COVID, do I need a vaccine? And how does the immune system respond? An expert explains

  • Written by Sunit K. Singh, Professor of Molecular Immunology and Virology, Institute of Medical Sciences, Banaras Hindu University
If I've already had COVID, do I need a vaccine? And how does the immune system respond? An expert explainsAndre Coelho/EPA/AAP

Over a year into the pandemic, questions around immune responses after COVID continue to confound.

One question many people are asking is whether the immunity you get from contracting COVID and recovering is enough to protect you in the future.

The answer is no, it’s not.

Here’s why.

Remind me, how does our immune...

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