Each disease or health event is assessed as a ROUTINE, MODERATE, or HIGH public health threat. For a detailed explanation of the event threat levels, users can click on the Legends widget at the top right corner of the header bar on the main map screen for a brief explanation of each threat level. All levels are determined by AFHSB based on the implementation of Force Health Protection (FHP) countermeasures. For more information, select the “How Are These Thresholds Determined” link at the bottom of the Legends widget screen.