Flu Vaccine

ice · Jul 8, 2021

Moderna starts human trials of an mRNA-based flu shot | The Verge

The flu shots available each year in the United States are usually between 40 and 60 percent effective. The most common shots are made by growing the influenza virus in cells or chicken eggs, and then killing the virus so it’s no longer dangerous. It takes a long time to grow the virus, so companies have to start making the shots around six months ahead of time, based on predictions around which strain of the flu will be circulating that year.

Pharmaceutical companies hope that mRNA-based flu vaccines can be more effective than the traditional shots. Because they’d be faster to make, production wouldn’t have to start so far in advance, and they could theoretically be more closely matched with the type of flu spreading each season.

Moderna is the second group to start testing its mRNA flu shot in human trials — Sanofi and Translate Bio kicked off a trial this summer.
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Flu Vaccine

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Flu Vaccine

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