According to a recent study of the University of Houston, almost 39% of the examined shoe soles were contaminated with the bacteria C.diff (Clostridium difficile) which represents a public health threat which is resistant to various antibiotics.
These bacteria can cause severe diarrhea which can further lead to colon inflammation and more serious health problems, particularly if it’s antibiotic resistant.
“Shoes are contaminated from diverse source, and we are regularly contaminating our doorsteps by shoes.” explains the study author M. Jahangir Alam, Ph. D.
Moreover, there are many other bacteria which are found on your shoes and can contaminate your home. For instance, public restroom floors contain about 2 million bacteria per square inch ( the average toilet seat only about 50 per square inch).
This can be particularly dangerous for kids who love playing on the floor.
-Source : Just Natural Life