#$%^&*AU2013205819A120141127.pdf#####ABSTRACT A device for calculating risk of a patient developing a serious infection, the device comprising: a controller storage storing electronic program instructions for controlling the controller a display for displaying a user interface and input means wherein the controller is operable, under 5 control of the electronic program instructions, to: receive input via the input means, the input comprising one or more values representing respective measures of one or more risk factors associated with biological sample(s) obtained from the patient process the input to calculate the risk and display an indication of the calculated risk via the display.