Scabies is a global problem and is of such concern that in 2013 it was added to the World Health Organization list of neglected tropical diseases.1 Due to its highly contagious nature, it is easily spread where humans are in close living environments, and is therefore of particular concern in nursing homes where it may affect both residents and staff. Hence, prompt diagnosis and appropriate treatment of cases are important to control the spread; however, this is hindered by current difficulties (...) in rapid diagnosis. Conducting research with vulnerable populations involves careful attention to the interest of the individual. It is indisputable that all potential research subjects must have provided consent to participate in research, and it is less clear how to proceed when potential research subjects lack the capacity to provide consent. (shrink)