A new methodology for estimating nerve agent (Sarin (GB)/VX) casualties as a function of time: Defining the Human Response Injury Profile nerve agent methodology

The Human Response Injury Profile (HRIP) methodology uses time-based progressions of underlying symptoms and their severity changes over time to determine user-defined casualty and fatality estimates from chemical, biological, radiological, and nuclear (CBRN) events. This paper provides an overview of the HRIP nerve agent methodology for use in estimating casualties resulting from Sarin (GB) and VX exposure. The injury severity terminology and injury profiles for the nerve agent vapor inhalation and VX liquid percutaneous exposure routes are provided to demonstrate the dosage and dose ranges and their associated progression of injury over time.