Documenting a fungemia case in an immunocompetent patient after administration of probiotic. Concluding the Saccharomyces yeast causing the patient bloodstream infection was indeed from the probiotic capsule. Demonstrating the usefulness and feasibility of the two commercial-available strain-typing methods: DivsersiLab and MALDI-TOF MS. Questioning the safety of this preventative biotherapy in clinical use.