<；P>；PROBLEM TO BE SOLVED: To provide an adjuvant for influenza vaccines that comprises as an effective ingredient a nature-derived safe lactobacillus (vegetable lactobacillus) exhibiting actions of enhancing effects of an influenza vaccine prepared from an influenza virus strain PR8 or the like. <；P>；SOLUTION: The adjuvant for influenza vaccines comprises as an effective ingredient a Lactobacillus plantarum strain AYA (accession number: FERM P-21106). The adjuvant for influenza vaccines is preferably ingested continuously before administration of the influenza vaccine, more preferably ingested continuously from at least 7 days before administration of the influenza vaccine. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
