Escherichia Strains
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Questions and Answers

What are some pathogenic isolates of Escherichia strains?

Isolates possessing virulence factors, encoded predominantly by plasmids or temperate bacteriophages.

What are some toxins produced by Escherichia strains?

Enterotoxins, hemolysins, cytotoxins (e.g., verotoxins or Shiga-like toxins SLT I and SLT II).

What structures do certain virotypes of Escherichia express?

Structures of type III secretion system (T3SS) or injectisome.

What is the function of the type III secretion system (T3SS) or injectisome in Escherichia?

<p>Responsible for microbial invasiveness, spread, and intracellular persistence.</p> Signup and view all the answers

What is the function of bacteriocins (colicins) produced by many E. coli strains?

<p>Affecting neighboring microflora.</p> Signup and view all the answers

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