types of bacterial gastroenteritis
| secretory gastroenteritis | inflammatory gastroenteritis | invasive gastroenteritis |
location | proximal small intestine | colon | distal small intestine |
type of illness | watery diarrhoea | dysentry | enteric fever |
stool examination | no fecal leukocytes | fecal polymorphonuclear leukocytes | fecal mononuclear leukocytes (if patient has diarrhea) |
mechanism | enterotoxin or bacterial adherence/invasion causes a shift in water and electrolyte excretion/adsorption | bacterial invasion or cytotoxins cause mucosal damage that leads to inflammation | bacteria penetrate the mucosa and invade the reticuloendothelial system |
classic pathogens |
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Reference:
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