On any given day, about one in 25 hospital patients in the United States has a health care–associated infection (HAI) that
the patient contracts as a direct result of his or her treatment. Fortunately, the spread of most HAIs can be halted through
proper disinfection of surfaces and equipment. Consequently, cleaners—“environmental services” (EVS) in hospital parlance—must
take on the important task of defending hospital patients (as well as staff and the broader community) from the spread of
HAIs. Despite the importance of this task, hospitals frequently outsource this function, increasing the likelihood that these
workers are under-rewarded, undertrained, and detached from the organization and the rest of the care team.