The present invention relates to a composition for use in the treatment and / or prevention of a gastrointestinal condition, comprising at least one Lactobacillus strain, wherein the Lactobacillus strain is chosen from the group consisting of one L. salivarius strain, three L. plantarum strains and one L. brevis strain, wherein the L. salivarius strain is L. salivarius CW30 (LMG P-28887), wherein the L. plantarum strains are L. plantarum Y1An734 (LMG P-28886), L. plantarum SH1313 (LMG P-28884), and L. plantarum KS1 1 (LMG P-28885), and wherein the L. brevis strain is L. brevis SH1 1 1 (LMG P-28888). The present invention also relates to an enema comprising a composition according to the present invention. The present invention also relates to an isolated strain chosen from the group L. salivarius CW30 (LMG P-28887), L. plantarum Y1An734 (LMG P-28886), L. plantarum SH1313 (LMG P-28884), L. plantarum KS11 (LMG P-28885) and L. brevis SH111 (LMG P-28888). The present invention also relates to an isolated strain of L. salivarius CW30 (LMG P-28887) for use in the treatment and / or prevention of an infection by Clostridium difficile NAP / 027.