<；P>；PROBLEM TO BE SOLVED: To obtain an adjuvant against a virus- or pathogenic bacterium-derived inactivated antigen. <；P>；SOLUTION: (1) The adjuvant against a virus- or pathogenic bacterium-derived inactivated antigen comprises an extract of mushroom mycelium with hot water as a main component. (2) The secretory IgA antibody inducer comprises a virus- or pathogenic bacterium-derived inactivated antigen and the adjuvant against a virus- or pathogenic bacterium-derived inactivated antigen. (3) The method for inducing a viral or pathogenic bacterium-specific IgA antibody comprises administering a virus- or pathogenic bacterium-derived inactivated antigen and the adjuvant against the virus- or pathogenic bacterium-derived inactivated antigen. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
