Decubitus Ulcer Elderly or chronically ill, bedridden patients are prone todevelop decubitus ulcer (also called as bed sore or pressuresore); the most common site being near the anus or onthe lower extremities. Most frequent organisms infect thedecubitus ulcer are gastrointestinal flora (e.g. Bacteroides fragilis, or nosocomial pathogens (e.g. S. aureus…