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  1. 3 days ago · Type and morphology. E. coli is a gram-negative, facultative anaerobe, nonsporulating coliform bacterium. Cells are typically rod-shaped, and are about 2.0 μm long and 0.25–1.0 μm in diameter, with a cell volume of 0.6–0.7 μm 3.

    • EPEC

      Escherichia coli (/ ˌ ɛ ʃ ə ˈ r ɪ k i ə ˈ k oʊ l aɪ /...

    • Entamoeba COLI

      Entamoeba coli is a non-pathogenic species of Entamoeba that...

    • Gram-negative

      Microscopic image of gram-negative Pseudomonas aeruginosa...

  2. May 14, 2024 · Key points. Anyone can get infected with kinds of E. coli that cause diarrhea. Some groups of people are more likely to get infected or get seriously ill. These groups include children younger than 5, adults 65 and older, people with weakened immune systems, and international travelers.

  3. May 14, 2024 · E. coli that cause diarrhea. E. coli are a large group of bacteria (germs). Most E. coli are harmless and are part of a healthy intestinal tract. These E. coli help digest food, produce vitamins, and protect us from harmful germs. But some E. coli can make people sick, including six kinds that cause diarrhea. They are. STEC: Shiga toxin ...

  4. May 8, 2024 · Colony morphology; Escherichia coli: Circular, convex, smooth, opaque, pale pink: Staphylococcus aureus: Circular, convex, smooth, opaque, creamy yellow: Streptococcus pyogenes: Circular, convex, smooth, opaque, white: Pseudomonas aeruginosa: Circular, flat, smooth, shiny, blue-green: Bacillus subtilis: Circular, raised, wrinkled, opaque, white ...

  5. May 3, 2024 · Colony Morphology: Escherichia coli: Large, elevated, yellow, opaque colonies with a center more intense yellow; yellowish medium: Klebsiella species: extremely mucoid colonies varying in color from yellow to whitish-blue. yellowish medium. Proteus species: translucent blue colonies are usually smaller than Escherichia coli. blue-green to blue ...

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  7. May 15, 2024 · E. coli, ( Escherichia coli ), species of bacterium that normally inhabits the stomach and intestines. When E. coli is consumed in contaminated water, milk, or food or is transmitted through the bite of a fly or other insect, it can cause gastrointestinal illness. Mutations can lead to strains that cause diarrhea by giving off toxins, invading ...

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  8. 2 days ago · It is used to practice streaking technique and to observe differences in colony morphology; for recovery of microorganisms from skin; to carry out the catalase test and to test the requirements for X and/or V factors. E. coli is actually green on tryptic soy agar. The agar itself is a white, amber color.

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