The present invention relates to an antiviral pharmaceutical composition, a health functional food composition, and a cosmetic composition comprising a water-soluble extract of Saururus chinensis or a fraction thereof as an active ingredient, wherein the water-soluble extract of Saururus chinensis or a fraction thereof is a virus, particularly adenovirus The antiviral effect against herpesviruses is excellent. Thus, compositions containing water-soluble extracts of Saururus chinensis or fractions thereof as active ingredients can exhibit excellent virus infection prevention and infection improvement or therapeutic effect.
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