We find out how much protection Covid vaccines may offer amid speculation new variant could be more resistant
The emergence of Omicron has prompted widespread speculation that it may be more resistant to Covid-19 vaccines than existing variants, including Delta. But what does that mean for the average double-vaccinated person?
All the vaccines currently available in the UK work by training the immune system against the coronavirus spike protein – the key it uses to infect cells by binding to the ACE2 receptor. Omicron possesses more than 30 mutations in this protein, including 10 in the so-called “receptor-binding domain” (RBD) – the specific part that latches on to this receptor. Delta has two RBD mutations.
Continue reading...from The Guardian https://ift.tt/3D5xLXc
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