Updated Covid-19 boosters continue to offer substantial protection, even against rapidly spreading XBB.1.5 subvariant

The updated boosters are cutting the risk that a person will get sick from Covid-19 by about half, even against infections caused by the rapidly spreading XBB.1.5 subvariant.

The updated boosters are cutting the risk that a person will get sick from Covid-19 by about half, even against infections caused by the rapidly spreading XBB.1.5 subvariant.

The studies, conducted by researchers at the US Centers for Disease Control and Prevention, are one of the first looks at how the bivalent boosters have continued to work in the real world as the virus has evolved. The data shows that the boosters are continuing to offer substantial protection against currently circulating variants.

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