Recent is suggesting that things (such as shoes) that come in contact the floor are contaminated and could spreading germs in healthcare facilities, according to an article on the Infection Control Today website.
Despite daily cleaning of floors bacterial and viral contamination returns quickly.
Shoes are not the only culprits. A few studies also indicate some risk from floors and that protective shoe coverings don't necessarily help.
There are a number of steps that can keep floors from spreading dangerous germs. Effective daily cleaning involves removal of dry soil and damp/wet soil through vacuuming, dust/damp mopping and other processes.