1 Follow the instructions on the screen to complete the installation. 2  From Windows Explorer, double-click a Visio drawing (.vsd, .vss, .vst, .vdx, .vsx, or .vtx extension). 3  An Internet Explorer window opens and loads Visio Viewer, which then loads and renders the drawing in the browser window. Double-click the VisioViewer.exe program file on your hard disk to start the setup program. 2  Follow the instructions on the screen to complete the installation. 3  From Windows Explorer, double-click a Visio drawing (.vsd, .vss, .vst, .vdx, .vsx, or .vtx extension).
Case definitionâ. Confirmed case. Laboratory confirmation of infection in a patient with or without clinical illness: isolation of verotoxin producing E. coli from appropriate specimen OR. detection of verotoxin antigen or nucleic acid.
Arthur W. Perry, MD , Plastic Surgery, answered. E coli cases are often caused by food workers not washing their hands after going to the bathroom. And Salmonella cases commonly result from placing cooked food on surfaces where raw chicken sat. Both of these bacteria can cause severe diarrhea and fever, and can be deadly in weakened people like children, the elderly, and those with other diseases.