Micro 26: Vibrio and Related Bacteria
This episode introduces Vibrio species and related curved Gram-negative rods. Drawing from Murray’s Chapter 26, it begins with ecology: these organisms are intrinsically linked to aquatic environments, particularly brackish and marine waters.
The central organism is Vibrio cholerae, whose pathogenesis illustrates the power of toxin-mediated disease. Rather than invading deeply, it adheres to intestinal epithelium and secretes cholera toxin, triggering cyclic AMP–mediated chloride and water secretion. The result is profound watery diarrhoea without significant inflammatory damage.
Other…
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