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Why a norovirus vaccine isn’t available — yet

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84% Informative

Around 20 million illnesses, on average, are caused by norovirus each year in the United States .

Around 465,000 emergency department visits — mostly for young children — and 900 deaths, largely among those 65 and older.

There are no vaccines or specific treatments for the virus, but there are several candidates making their way through clinical trials now.

The candidates moving through clinical trials target the protein shell of the virus.

Moderna announced last September that it has begun the phase 3 trial of their norovirus vaccine candidate.

Other candidates that have made it through early-stage clinical trials are based on viruslike particles.

“I think there will be a vaccine,” Estes says.

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