 The investigators will conduct a prospective study where patients within the ED and inpatient units are electronically screened using the PSSST during a 3-year study period. Patients will be screened using a novel electronic tracking tool designed locally, using pre-defined severe sepsis variables and validated on patients with severe sepsis. Patients screened as positive for severe sepsis using the electronic tracking tool will be treated prospectively with a standardized severe sepsis management bundle. Data will be collected prospectively on all patients admitted to the ED and inpatient units. For the ED and each inpatient unit, the outcomes defined above will be compared with those for the same period in the preceding year. 