E. Coli

• Coexists with E. histolytica, but does not lyse cells
• Is E. coli commensal?

  Yes, it feeds on bacteria, protists, and yeast
• How to tell E. coli apart from E. histolytica?

  Off center nucleus int he trophozoite, food vacuole w/ bacteria

  
• How to tell E. coli cysts apart?

  Chromatoidal bars have splintered ends

  The Mature cyst has 8 nuclei, while the metacyst has 16
• There is no treatment required for E. coli