<prompt> Shigellosis is best diagnosed by ?Stool examinationStool cultureSigmoidoscopyEnzyme  <response>: Ans. is b i.e., Stool culture Lab diagnosis Diagnosis is made by isolating the bacillus from feces. . Transpo media - Sachs buffered glycerol saline . Culture - Specimens are inoculated on : 1 MacConkey medium 2Deoxycholate medium DCA -- Selective medium 3Hektoen entric agar or salmonella-shigella agar -- Selective medium 