Grape Seed Extract to Reduce Risk of Norovirus Infection

Protect yourself from possible food-borne illness by including grape seed extract . . . Read AANP summary:

AANP – Grape Seed Extract Inhibits Norovirus Infectivity  (Tuesday, November 13, 2012) –A new study has found that grape seed extract damages the coat of the norovirus, which explains (and confirms) recent research showing that extract can reduce the viability and infectivity of this very common source of illness. (The norovirus causes more than half of all food-born illnesses in the United States. A recent study found that grape seed extract could reduce the infectivity of norovirus surrogates, which are viruses that share the same biological features with human norovirus. It is transmitted mainly fecal-orally, and key sources of transmission include infected food handlers, surfaces that have touched food, shellfish, and fresh produce. Only 10-100 virus particles are sufficient to transmit the disease. Grape seed extracts are industrial derivatives from whole grape seeds.) The new study shows that grape seed extract denatures, or alters the normal nature of, the capsid protein that makes up the coat of the virus. This essentially disables the virus by precipitously reducing its ability to bind to surfaces and therefore, its infectivity. This research was published in the November 2012 issue of the journal Applied and Environmental Microbiology and the full-text report can now be accessed online with fee payment.

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