How long does COVID-19 immunity from vaccines last? Will we need booster shots? Why do some people contract COVID-19 twice? Infectious diseases physician Dr Giri Shan Rajahram from Queen Elizabeth II Hospital answers these questions and more in this 101 on COVID-19 immunity. 

 

Image source: Shutterstock

How long does COVID-19 immunity from vaccines last? Will we need booster shots? Why do some people contract COVID-19 twice? Infectious diseases physician Dr Giri Shan Rajahram from Queen Elizabeth II Hospital answers these questions and more in this 101 on COVID-19 immunity.&nbsp;
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Image source: Shutterstock

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