Microbiology Final Lecture 11: Enterobacteria

What does E. coli coliforms in water indicate?

Fecal contamination

What is the disease caused by UPEC (ExPEC)?

UTI

What is the disease caused by ETEC?

Traveler's diarrhea

What are the unique characteristics of EHEC? (2)

1. Caused bloody diarrhea

2. Produces Shiga-like toxin

What is the transmission method for EHEC?

Contaminated food/water

What is the disease caused by EHEC? (2)

1. HUS

2. Acute renal failure

What is the disease caused by EPEC?

Childhood diarrhea

Which E coli species form AEEC?

EHEC and EPEC

What is EAEC commonly isolated from? (2)

1. Patients with traveler's diarrhea

2. HIV patients

What is the unique characteristic of EIEC?

More related to Shigella than other E. coli

What is the unique characteristic of Shigella? (2)

1. Most common cause of dysentery

2. Low infection dose

What are the species of Shigella? (3)

1. Shigella sonnei (Most common)

2. Shigella flexnari

3. Shigella dysentariae

What is Shigella sonnei and flexnari transmitted by?

Not washing hands

Does Shigella sonnei cause dysentary?

No

What is the transmission method for E. Coli?

Fecal-oral

What is the unique characteristic of Salmonella? (2)

1. Sensitive to acid

2. Forms carrier states

What are the transmission methods for Salmonella? (3)

1. Animal contact

2. Contaminated water/food

3. Fecal-oral

What is the main disease caused by Salmonella?

Typhoid Fever