I never understood the mechanism behind transferring bacteria from our hands to another surface. For example, assuming we have a standard day-to-day amount of bacteria on our fingertips, for a sufficient amount to transfer to a surface, is a firm press needed or is a slight millisecond touch enough? Does touching a dry surface with dry skin transfer any significant amount? Does any bacteria fall/shed from our skin when we wave our hands around or hover over a surface?
So basically does bacteria “cling” onto our skin? And how easy is it for the bacteria to transfer to another surface?