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Salmonella Introduction Salmonellae are intestinal parasites which infect man Cousing- . Enteric fever . Gastro enteritis . Septicaemia The most important member in Salmonella typhy positive agent of typhoid fever Morphology Thet are gram positive baslla measuring about 1-3×0.5mm ~Non sporing ~Non capsulated ~Motile Culture . They grow on ordinary culture media at optimal temperture of 37°C Optimal PH =6-8 Maeconkey Agar The colonies are colourless due to non lactose fermentation Blood Agar . The colonies apper circular translusent low convex and smooth whicg are 2-3mm in diameter Pathogenesis 1. Salmorella tiphy, S. Para tiphy A,S parriphy B are the organisms confined to human beings 2.Other organism of salmonllave primaity infect Animals 3.Salmonella couses 3 types of clincal syndromes number 1 Enteric fever number 2 Gastro enterilis number 3 septicamia