Gastroenteritis due to Shigella

Gastroenteritis due to *Shigella*, commonly referred to as shigellosis or bacillary dysentery, is an acute enteric bacterial infection predominantly affecting the epithelial lining of the colon and rectum It is caused by facultatively anaerobic Gram-negative bacilli of the genus *Shigella* (most notably *S. sonnei*, *S. flexneri*, *S. boydii*, or *S. dysenteriae*), which invade the colonic mucosa to trigger intense mucosal inflammation, ulceration, and fluid exudation Pathophysiologically charac...

Gastroenteritis due to *Shigella*, commonly referred to as shigellosis or bacillary dysentery, is an acute enteric bacterial infection predominantly affecting the epithelial lining of the colon and rectum

Gastroenteritis due to *Shigella*, commonly referred to as shigellosis or bacillary dysentery, is an acute enteric bacterial infection predominantly affecting the epithelial lining of the colon and rectum

It is caused by facultatively anaerobic Gram-negative bacilli of the genus *Shigella* (most notably *S. sonnei*, *S. flexneri*, *S. boydii*, or *S. dysenteriae*), which invade the colonic mucosa to trigger intense mucosal inflammation, ulceration, and fluid exudation Clinically, affected individuals—most frequently young children under 5 years of age, international travelers, and immunocompromised hosts—present with fever, abdominal cramping, tenesmus, and profuse diarrhea that typically evolves...

Pathophysiologically characterized by an extremely low infectious dose, transmission occurs readily via the fecal-oral route Clinically, affected individuals—most frequently young children under 5 years of age, international travelers, and immunocompromised hosts—present with fever, abdominal cramping, tenesmus, and profuse diarrhea that typically evolves from watery stool to classic dysentery marked by small-volume stools containing blood, pus, and mucus

Pathophysiologically characterized by an extremely low infectious dose, transmission occurs readily via the fecal-oral route

Clinically, affected individuals—most frequently young children under 5 years of age, international travelers, and immunocompromised hosts—present with fever, abdominal cramping, tenesmus, and profuse diarrhea that typically evolves from watery stool to classic dysentery marked by small-volume stools containing blood, pus, and mucus