Shigella identification methods and strategies. Blue: phenotypic techniques; yellow: molecular techniques. *EIEC can be differentiated from Shigella by a number of tests, which include motility, mucate, and salicin fermentation, esculin hydrolysis, the combined positivity of indole production and gas formation from d-glucose, and acetate utilization. #Novel approaches of MALDI-TOF include ClinProTools, referenced library, and short-term lactose incubation