Quadruple viable bacterium preparation and application thereof

The invention provides a quadruple viable bacterium preparation, which is prepared from lactobacillus acidophilus, bifidobacterium lactis, lactobacillus rhamnosus and lactobacillus paracasei, the viable count of the lactobacillus acidophilus is not less than 1*10 CFU/g, the viable count of the bifidobacterium lactis is not less than 1*10 CFU/g, the viable count of the lactobacillus rhamnosus is not less than 1*10 CFU/g, and the viable count of the lactobacillus paracasei is not less than 1*10 CFU/g. On the premise of low-dose administration, the quadruple viable bacterium preparation can significantly improve the immunity of a body. 本发明提出了一种四联活菌制剂。该四联活菌制剂包括：嗜酸乳杆菌、乳双歧杆菌、鼠李糖乳杆菌以及副干酪乳杆菌。其中，嗜酸乳杆菌的活菌量不低于1×109CFU/g，乳双歧杆菌的活菌量不低于1×109CFU/g，鼠李糖乳杆菌的活菌量不低于1×109CFU/g，副干酪乳杆菌的活菌量不低于1×109CFU/g。该四联活菌制剂在低剂量给药的前提下，可显著提高机体的免疫力。