Paul Rebhan wrote:
When you walk through almost any part of a city, and even in the suburbs, your shoes pick up a multitude of unwanted hangers-on. If you wear those shoes in your home, you run the risk of endangering your family's health by spreading viruses, bacteria, parasites, fungi, other pathogens, allergens and toxic substances.
Nocent items such as these may be commonly found on sidewalks and streets:
- Remnants of feces from dogs, cats, rodents, birds, other wildlife and sometimes, even humans.
- Urine from the same sources.
- Excretions such as saliva, mucus, sweat and sometimes, blood or vomit.
- Remains from insects and rodents
- Remnants of garbage including food waste and toxic cleaning products.
- Residue from insecticides, oils, gasoline and grease.
Even indoor spaces such as the floors of restrooms are frequently contaminated with urine and hospitals or doctors' offices are fertile hotspots for a variety of germs that may end up on your shoes. Soil around homes and parks may be contaminated with lead, pesticides, lawn chemicals and toxic wood preservatives.
Residue from humans and animals may contain common viruses and pathogens such as hepatitis, herpes, E. coli, tetanus, rabies, strep, hantavirus, or cold and flu causing germs. Garbage residue may carry traces of toxic products such as formaldehyde, industrial chemicals, dyes and lead. According to Dr. Leo Galland, author of "Power Healing", lead tracked into a home and accumulated in carpet dust often exceeds levels requiring clean-up at Superfund toxic sites.
These items may be on the ground in very small deposits that are unnoticeable to the naked eye. Shoe soles are generally made of leather, rubber or other porous materials that allow the absorption of microscopic substances. Wiping shoes on a doormat or rug may remove some of the larger materials, but will not eliminate microscopic germs.
Once inside your home, contaminated shoes become a conduit for disease, spreading germs to carpets and even hard-surfaced floors. If you walk on those floors later without shoes, the germs can spread to your feet and be carried to other places such as your bed. If children are allowed to play on the floor, germs can easily spread to their hands, clothing and mouths. Even pets are at risk of picking up and spreading these germs.
In his book "The Secret Life of Germs", Philip M. Tierno, Jr., Ph.D. suggests a simple way to avoid this hazard: "One should adopt the hygienic Japanese practice of having separate footwear for outdoors and indoors, and leaving the outdoor shoes at the threshold".
References: Philip M. Tierno. Jr, Ph.D.: The Secret Life of Germs, The U.S. Centers for Disease Control: An Ounce of Prevention, Dr. Leo Galland: Power Healing, Spectrum Magazine: Our Daily Dose of Poison, Logan County, CO.: The Online Courthouse, Gary Null, Ph.D.: Natural Living with Gary Null