This study examined the impact of MRSA infection control approaches used at one hospital in Switzerland over a 20 year period. The hospital implemented strict contact precautions, with single rooms for MRSA-colonised or infected patients, targeted screening upon admission of high-risk patients and healthcare workers at risk, molecular typing of all MRSA strains and routine decolonisation of MRSA carriers, including healthcare workers. Between 1993 and 2012, 540,669 blood samples were tested. The rate of testing increased over time. MRSA incidence varied between 0 and 0.27 per 10,000 patient days. The researchers concluded that long-term control of MRSA is feasible by strictly enforcing a bundle of infection control precautions.
Widmer AF, Lakatos B, Frei R. Strict infection control leads to low incidence of methicillin-resistant staphylococcus aureus bloodstream infection over 20 years. Infection Control and Hospital Epidemiology. 2015. 36(6): 702 – 709