ميسين سيدوت باسير بلاسر. Proteus Infections: Background, Pathophysiology, Epidemiology. Sep 13, 2018· Proteus mirabilis causes 90% of Proteus infections and can be considered a community-acquired infection.Proteus vulgaris and Proteus penneri may be isolated from individuals in long-term care facilities and hospitals and from patients with underlying …