Applies to everyone. Fortunately dentists and surgeons use effective disinfectants prior to doing their work.
Not sure what is so confusing about NO DATA supports the use of triclosan in handsoaps. No Data. So in a free market you can add hydrochloric acid to your soap. If your free market agrees to a regulatory agency to monitor for safety and efficacy it will ask for DATA to support claims for acid in your soap. If you cannot show that the acid does anything the risks of including it will mean it has to go. That's how it works.
For over 30 years these manufacturers have deflected the call for DATA and now the time is over for including these drugs and claiming they do something when they do not.
It is impossible to “prove” something is “safe”, at the levels the FDA now demands.
Everything is toxic at some level, too much oxygen or water will surely kill you.
Proving something is *effective* is another matter.