New vaccine candidate shows strong potential to prevent highly contagious norovirus

Scientists have found that an experimental vaccine against human norovirus -- the bug behind 90 percent of highly contagious nonbacterial illnesses causing diarrhea and vomiting -- generates a strong immune response in mice without causing the animals any harm. Using a novel viral vector-based method to grow and deliver the vaccine that has shown promise in other agents designed to fight such infections as HIV and hepatitis C, they are the first to test this vaccine design method's effectiveness against the human norovirus.

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