| abstract |
Effective preventive agent for infectious diseases, annenhancer of an infectious disease-preventive action ofncysteine and food and feed effective for infectious diseasesnare provided. n An agent for preventing infectious diseases whereinncystine and the like and theanine are combined, an enhancer ofnan infectious disease-preventive action of cystine and thenlike, which contains theanine, and food and feed whereinncystine and the like and theanine are combined. |