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Researchers ‘block’ the West Nile virus out of the brain by tightening the blood-brain barrier.

Researchers have found that an antiviral compound may protect the brain from invading pathogens.  Studying West Nile virus infection in mice, researchers at Washington University showed that interferon-lambda tightens the blood-brain barrier, making it harder for the virus to invade the brain. The team explain that the blood-brain barrier is a natural defense system that is supposed to keep pathogens

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