<prompt> Which salmonella is anaerogenic :S. typhiS.paratyphi AS. paratyphi BAll of the above  <response>: Salmonella typhi is anaerogenic. Option 1 All Salmonellae produce acid and gas aerogenic when they ferment sugars except S. typhi which only produces acid anaerogenic. Option 2, 3, 4 Salmonellae : Ferment glucose, mannitol, and maltose,forming acid and gas. S. Typhi is an exception, which does not ferment the sugars. Produces H2S except S. paratyphi A, S. choleraesuis. Do not hydrolyze urea. MR positive ,VP negative ,citrate positive. Catalase positive ,oxidase negative. 