<prompt> DCA media used in differentiation of which infection?SalmonellaStaph aureusH. influenzaeBordetella  <response>: Ans. is a i.e., Salmonella Deoxycholate citrate agar DCA medium is a selective medium for Salmonella and Shigella. It is also used as a differential medium to differentiate lactose fermenter from non-lactose fermenting enteric pathogens. Salmonella and Shigella except Shigella Sonnei are non-lactose fermenters. 