PATHOGENESIS. Shigella cause bacillary dysentery There are two types of dysentery They are : a) Amoebic dysentery b) Bacillary dysentery. AMOEBIC DYSENTERY. BACILLARY DYSENTERY. Incubation period is long Insidious onset Local abdominal tenderness Moderate tenesmus
cells of villi in LI
Inflammatory reaction with
Necrosis of epithelial cells
Diagnosis depends on isolating bacilli from feaces.. 1.SPECIMENS.
-direct swab of an ulcer.