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Omicron Subvariants BA.4 and BA.5 Escape Antibodies : May Fuel Higher Risk Of Re-Infection


BA.4 and BA.5 are the fastest spreading variants reported to date, and they are expected to dominate Covid-19 transmission in the United States, United Kingdom and the rest of Europe within the next few weeks, according to the European Centre for Disease Prevention and Control.

‘COVID-19 still has the capacity to mutate further’

Moderna’s bivalent Covid-19 vaccine booster, named mRNA-1273.214, elicited “potent” immune responses against the Omicron subvariants BA.4 and BA.5, the company said Wednesday.

This bivalent booster vaccine candidate contains components of both Moderna’s original Covid-19 vaccine and a vaccine that targets the Omicron variant. The company said it is working to complete regulatory submissions in the coming weeks requesting to update the composition of its booster vaccine to be mRNA-1273.214.

Moderna’s data suggest that “the bivalent booster might confer greater protection against the BA.4 and BA.5 omicron strains than readministering the original vaccine to increase protection across the population.

SOURCE: CNN
IMAGE SOURCE: PIXABAY

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