Coronavirus variant: Pfizer and Moderna may greater boost against Omicron than AstraZeneca

Data is yet to emerge on how efficacious the current coronavirus vaccines will prove against the new variant.  

“Vaccines used in the UK and globally have been designed against the wild type [of coronavirus] and not engineered towards the new variants,” explained professor Wei Shen Lim, Chair, Joint Committee on Vaccination and Immunisation (JCVI).

As he pointed out, the larger the “mismatch” between the vaccines and new variants increases the likelihood of immune escape.

However, the booster shots supercharge the immune response so offer the best weapon against new variants, noted prof professor Lim. 

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