To the Editor: Community-based epidemiologic studies have shown beneficial effects of hand sanitizers. Hand sanitizers were effective in reducing gastrointestinal illnesses in households (1), in curbing absentee rates in elementary schools (2), and in reducing illnesses in university dormitories (3). An Internet search retrieved recommendations for hand hygiene from schools, daycare centers, outdoor guides, and animal shelters.
To reduce infections in healthcare settings, alcohol-based hand sanitizers are recommended as a component of hand hygiene (4). For alcohol-based hand sanitizers, the Food and Drug Administration (FDA) (5) recommends a concentration of 60% to 95% ethanol or isopropanol, the concentration range of greatest germicidal efficacy.