The Route of Exposure field, mid-right portion of the open case screen, is where the route in which the exposure occurred is selected.
To select a route, click the mouse button in the Routes field to open the Route of Exposure window. Select the route of exposure by clicking in the box to the left of the appropriate route to add a checkmark. It is possible to select multiple routes of exposure. Click ‘OK’ to populate the checked routes into the case displayed on your workstation.