The outside of the shoes averaged 421,000 units of bacteria. Fecal bacteria appeared on 96% of shoes.
Bacteria, toxins, and dirt are among the unpleasantries you track into your home on your shoes. The average shoe sole is dirtier than the average toilet seat.
“Your shoes come in contact with bacteria from restroom floors and the outdoors. Unless you remove your shoes or clean them, you can transfer the bacteria indoors. This is especially a concern in homes where an infant or toddler is crawling around because everything they get on their hands eventually goes into their mouth.”