The widespread, pathogenic microbe Staphylococcus aureus can colonize the skin and mucous membranes throughout the body, particularly the vagina and gastrointestinal tract. A virulent strain of the bacterium produces toxic shock syndrome (TSS), a disease characterized by the quick onset of fever, a telltale rash, and, without treatment, multi-organ failure. Probiotics may help prevent the disease before the cytokine cascade ever begins. A study reports that strains of two bacteria, Lactobacillus acidophilus and Lacticaseibacillus rhamnosus, successfully inhibited the production of the superantigens that cause TSS, in lab experiments. L. Acidophilus, in addition, inhibited the growth of the S. aureus strains...