PROBLEM TO BE SOLVED: To provide viral infection or bacterial toxin control agents from plant-derived components with high safety.SOLUTION: Viral infection or bacterial toxin control agents include hot water extracts of leaves of Magnolia obovata as an active ingredient.COPYRIGHT: (C)2014,JPO&INPIT【課題】安全性の高い植物由来の成分中からウイルス感染又は細菌毒素防御剤を提供。【解決手段】ホオノキの葉の熱水抽出物を有効成分とするウイルス感染又は細菌毒素防御剤。【選択図】なし