Proteus species are most commonly found in the human intestinal tract as part of normal human intestinal flora, along with Escherichia coli and Klebsiella species, of which E coli is the predominant resident. Proteus is also found in multiple environmental habitats, including long-term care facilities and hospitals.roteus mirabilis causes 90% of Proteus infections and can be considered a community-acquired infection. Proteus vulgaris and Proteus penneri are easily isolated from individuals in long-term care facilities and hospitals and from patients with underlying diseases or compromised immune systems.
By focusing on this topic we will present the emergence of Classical World Civilizations as a somewhat linear progression leading to an era of significant material interaction and cultural transfers between distant civilizations by the second century AD.
1 Prehistory â period before written history. 2  Ancient history â aggregate of past events from the beginning of recorded human history and extending as far as the Early Middle Ages or the Postclassical Era. Classical antiquity â broad term for a long period of cultural history centered on the Mediterranean Sea, comprising the interlocking civilizations of ancient Greece and ancient Rome, collectively known as the Greco-Roman world.