If you grab your mobile with your dirty hands, then wash them, and then use your device again, you just recontaminated them; and if you never clean its surface (how do we do it effectively?), it’ll accumulate pathogens. This seems to be a serious problem in hospitals.
(I’m not sure if I follow your reasoning; it apparently implies that, if you never shake hands with someone else, you never have to worry about washing them. Of course, it does reduce the potential for transmission.)
You aren’t just touching other peoples hand directly. You are usually touching doornobs, light switches and other objects that other people are also touching.
If you grab your mobile with your dirty hands, then wash them, and then use your device again, you just recontaminated them; and if you never clean its surface (how do we do it effectively?), it’ll accumulate pathogens. This seems to be a serious problem in hospitals.
(I’m not sure if I follow your reasoning; it apparently implies that, if you never shake hands with someone else, you never have to worry about washing them. Of course, it does reduce the potential for transmission.)
You aren’t just touching other peoples hand directly. You are usually touching doornobs, light switches and other objects that other people are also touching.