This was discussed here earlier but there are some new studies which confirm the earlier studies.
“What we are saying is that these e-coli could survive in the concentrations that we use in our (consumer formulated) antibacterial soaps,” Aiello said. “What it means for consumers is that we need to be aware of what’s in the products. The soaps containing triclosan used in the community setting are no more effective than plain soap at preventing infectious illness symptoms, as well as reducing bacteria on the hands.”
The study, “Consumer Antibacterial Soaps: Effective or Just Risky”” appears in the August edition of Clinical Infectious Diseases. The team looked at 27 studies conducted between 1980 and 2006, and found that soaps containing triclosan within the range of concentrations commonly used in the community setting (0.1 to 0.45 percent wt/vol) were no more effective than plain soaps. Triclosan is used in higher concentrations in hospitals and other clinical settings, and may be more effective at reducing illness and bacteria.