Lactic acid bacterium, innate immunity activator derived from the lactic acid bacterium, infectious disease preventive/therapeutic drug, and food and drink
PROBLEM TO BE SOLVED: To provide a lactic acid bacterium having a high ability to activate innate immunity, an innate immunity activator containing a product/processed product of the lactic acid bacterium as an active ingredient, an infectious disease preventive/therapeutic drug, and a food or drink containing the same. Further, the present invention provides a novel lactic acid bacterium having a high ability to activate innate immunity, a prophylactic/therapeutic drug for infectious diseases containing an active ingredient derived therefrom, and food and drink fermented with the lactic acid bacterium. SOLUTION: A lactic acid bacterium belonging to Weissella hellenica, a killed bacterium of the lactic acid bacterium, a product of the lactic acid bacterium, or a natural immunity activator containing the treated product of the lactic acid bacterium as an active ingredient, The processed product of is a culture, culture supernatant, concentrate, paste, dried product, liquefied product, diluted product, crushed product, sterilized product, or extract of a culture of lactic acid bacteria. An agent for preventing and treating infectious diseases, which comprises an agent and an innate immunity activator and is used for preventing or treating infectious diseases against pathogenic bacteria or viruses. [Selection diagram] Figure 1【課題】高い自然免疫活性化能を有する乳酸菌、該乳酸菌の産生物・処理物等を有効成分とする自然免疫活性化剤、それを含有する感染症予防・治療薬や飲食品の提供。また、高い自然免疫活性化能を有する新規な乳酸菌、それに由来する有効成分を含有する感染症予防・治療薬や、該乳酸菌を用いて発酵させた飲食品の提供。【解決手段】ワイセラ・ヘレニカ（Weissella hellenica）に属する乳酸菌、該乳酸菌の死菌、該乳酸菌の産生物、又は、該乳酸菌の処理物を有効成分とする自然免疫活性化剤であって、上記乳酸菌の処理物は、乳酸菌の、培養物、培養上清、濃縮物、ペースト化物、乾燥物、液状化物、希釈物、破砕物、殺菌加工物、又は、培養物からの抽出物である自然免疫活性化剤、並びに、該自然免疫活性化剤を含有し、病原菌又はウイルスに対する感染症の予防用若しくは治療用であることを特徴とする感染症予防・治療薬。【選択図】図１
