Business:
Are your customers at risk of being infected when visiting your place, and how does it translate for you in terms of business?
Infection can spread in community settings like fire. Microbes can spread from person to person through contaminated hands. Some places form reservoirs of microorganisms: non disinfected surfaces or equipment in the kitchen (reservoirs of E Coli, C difficile, …), the floor of a spa/swimming pool (dermatophytes), the surface of a whirlpool, fitness devices, …
Personnal:
Those who are under medical care, or the diabetics, face serious risks if they become infected by an MRSA. Or, an otherwise benign foot fungus infection can become a nightmare for these fragilized individuals: it is an open door for bacteria, that can colonize the leg and can cause a deep infection.