Some folks are touting the virucidal action of plain old soap and water, “Soap and water kills viruses!” Yeh, but not unless agitated for up to SIX MINUTES (OK, depending on variables in the environment where they are found, from two to six minutes). (Yeh, the much ballyhooed paper on soap and water killing HIV doesn’t see that lil factoid make the press. Yeh, I read the paper.) Count on the finger of one hand how many folks you know who are going to spend two minutes, let alone six, vigorously washing their hands with soap and water. Is it less than one? (The key is the physical action slowly working to help the soap break down a secondary, minor component–lipids–of virus capsids, since virus capsids are primarily protein, unlike bacteria cell walls, which are heavily linked with lipids enabling killing of some bacteria easier by similar vigorous and time-consuming application of soap and water).
This is why THE key benefit of proper hand washing is washing microbial materials OFF and rinsing them away.
(BTW, that infamous paper demonstrating that HIV can be “inactivated” by soap and water showed even longer times to effectiveness when some variables were changed, and agitating the solutions was still key. That’s because physics and chemistry–fill in the blank. Go ahead. Look it up. *heh*)
Oh, BTW, I use the term “kill” above referring to viruses, but of course I do not mean “kill” since one either “deactivates” or “destroys” viruses, because (OK, admittedly some controversy/gray area) viruses are not really alive to begin with. so cannot be “killed.”