The biotech company's experimental Omicron booster generates high levels of antibodies that neutralise subvariants BA.4 and BA.5, according to preliminary clinical trial data.
"When you bring two mRNAs together, and two slightly different versions of the spike protein are then produced in your body ... you don't just get antibodies against what you're putting in. You get this very broad cover of all sorts of potential new variants.
This, according to RMIT University professor of immunology Magdalena Plebanski, is "the really good news.""[The booster] is not just tackling a new strain, and then losing potency against the previous strains," Professor Plebanski said. By then, BA.4 and BA.5 "will probably be a distant memory", but the new booster will cover variants that are yet to rear their head, Dr Burton said.
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