WHO's Science In 5: Vaccines, Variants And Mass Gatherings

PUBLISHED ON: April 19, 2021 | Duration: 5 min, 05 sec

  
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How much protection does COVID-19 vaccines provide us? Will you need a booster shot for new variants? What does science and evidence tell us about mass gatherings and the spread of COVID-19? WHO's Chief Scientist Dr Soumya Swaminathan explains in 'Science In 5'. [Credit: World Health Organisation]
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