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Future COVID-19 booster shots will likely need fresh formulations as new coronavirus variants of concern continue to emerge

A new generation of vaccines and boosters against SARS-CoV-2 may take a page from the anti-influenza playbook, with shots periodically tailored to target the most commonly circulating virus strains.
Eli Lilly World Health Organization Global Influenza Surveillance Drug Administration World Health Organization Global Influenza Surveillance Response System

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What's the difference between mutations, variants and strains? A guide to COVID terminology

Living through a global pandemic over the past year has seen all of us expanding our vocabularies. We now understand terms like PPE, social distancing and contact tracing. But just when perhaps we thought we had a handle on most of the terminology, weโ€™re faced with another set of new words: mutation, variant and strain. So, what do they mean? The genetic material of SARS-CoV-2, the coronavirus that causes COVID-19, is called ribonucleic acid (RNA). To replicate, and therefore establish infec...
South Africa United Kingdom South African Oxford Astrazeneca Lara Herrero World Health Organisation

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