Bacterial diarrhea: Invasive vs Non Invasive diarrhea.

Bacterial diarrhea’s can be classified into invasive and non invasive, this classification has an important role in determining treatment modalities.

Non Invasive Diarrhea

  • Caused by release of toxins from bacteria resulting in disruption of secretory process.
  • Characterized by watery diarrhea.
  • Blood and fecal leucocytes are characteristically absent.

Bacteria associated are:

  1. Staphylococcus aureus.
  2. Bacillus cereus
  3. Clostridium perfingens
  4. Enterotoxigenic E.Coli(ETEC)
  5. Vibrio cholerae

Invasive diarrhea.

Caused by direct damage to gastrointestinal tissue due to direct invasion by bacteria.

Diarrhea is characterized  by:

  • Fever
  • Dysentry(Blood in stools)
  • Fecal leucocytes

Bacteria associated are:

  1. Shigella
  2. Salmonella
  3. Yersenia enterocolitica.
  4. Enteroinvasive Ecoli(EIEC)
  5. Aeromonas
  6. Plesiomonas
  7. Listeria monocytogenes
  1. Campylobacter jejuni also causes invasive diarrhoea & you’ve missed.Thank you for your lists

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