Articles comprising one or more calcium salts are provided. The articles can contain one or more calcium salts in an amount effective to reduce the production of TSST-1 by at least about 50% when measured by the Shake Flask Method. In certain embodiments, the one or more calcium salts can be substantially non-lethal to Staphylococcus aureus when measured by the Shake Flask Method, and/or to Lactobacillus crispatus, Lactobacillus gasseri, and/or Lactobacillus iners when measured by the Maximum Tolerated Dose Test.