| 摘要 |
Effective preventive agent for infectious diseases, an enhancer of an infectious disease-preventive action of cysteine and food and feed effective for infectious diseases are provided. <??>An agent for preventing infectious diseases wherein cystine and the like and theanine are combined, an enhancer of an infectious disease-preventive action of cystine and the like, which contains theanine, and food and feed wherein cystine and the like and theanine are combined. |
