Thread: Longest lived empires/states in history. 1 out of 1 members found this post helpful. Many lists have been written about the most long-lived empires or states in the history of mankind and oddly enough nobody seems to agree on the ranking.
E. coli is a Gram-negative (bacteria which do not retain crystal violet dye), facultative anaerobic (that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation or anaerobic respiration if oxygen is absent) and nonsporulating bacterium.
1 Serotype E. coli 0157:H7 is a gram-negative bacterium that can produce a bloody diarrhea due to toxins, especially Shiga (Vero) toxin, it secretes when it infects the human intestine. 2  Other E. coli serotypes like 0145 or 0104:H4 can act like 0157:H7 if they acquire the ability to produce Shiga (Vero) toxin.