Fig. 4From: Evaluation of an ultraviolet room disinfection protocol to decrease nursing home microbial burden, infection and hospitalization ratesPattern of Change Expressed as a Ratio of Hospital-Acquired to Nursing Home Acquired Infection Rates. On the horizontal axis 1–3 are pre time periods (2012–2014), and four is the post disinfection time period (2015). Increases indicate the hospital acquired rate increased while the nursing home acquired rate decreased or stayed the sameBack to article page