All soap has the ability to kill viruses and bacteria. But not all soaps contain ingredients specifically selected to eliminate bacteria. Although the CDC (Centers for Disease Control and Prevention) stresses that antibacterial soap is no more effective than standard products, many people feel more confident knowing their soap eliminates odor-causing bacteria from the surface of their skin. The Irish Spring product line includes a sport strength antibacterial bar soap. In handwashing tests, antibacterial Irish Spring bar soap eliminated 99.9% of potentially harmful (E. coli) bacteria.