The present invention aims to propose a fluid composition capable of forming a coating, characterized in that it contains at least in a solvent medium an effective amount of at least one virucide of natural origin chosen from lauric acid, monolaurin, lactoferrin and essential oils having an antiviral activity and/or a precursor thereof, said composition having a viscosity between 30 mPa.s and 40 Pa.s, at room temperature and ambient pressure.本發明之目的係提出一種可形成塗層之流體組合物，其特徵為：其在溶劑介質中至少含有有效量的選自月桂酸、單月桂酸甘油酯、乳鐵傳遞蛋白及具有抗病毒活性之精油的至少一種天然來源殺病毒劑及/或其前驅物，該組合物在室溫及環境壓力下具有30 mPa.s至40 Pa.s之黏度。
