Introduction
In order to evaluate the methicillin resistant Staphyloccus aureus (MRSA) carriage rate, the cantonal unit for Hygiene, Control and Prevention of Infections (HPCI unit) undertook, in 2010, a survey of prevalence in104/157 nursing homes of canton Vaud (Western Switzerland). In the contest of survey, a project on the implementation of decolonisation protocol was conducted.