#$%^&*AU2017200236B120180301.pdf#####ABSTRACT A composition of Lactobacillus fermentum GMNL-296 and a use of Lactobacillus fermentum GMNL-296 for producing a composition to improve the infection symptoms of Clostridium difficile are provided. The Lactobacillus fermentum GMNL-296 is to promote the expression of anti-inflammatory cytokine IL-10 and Treg cell related transcription factors, so that the infection symptoms of weight loss and intestinal abnormalities are improved.