<prompt> Which of the following are the special laboratory conditions needed to recover C. jejuni37degC 98.6degF anaerobic on blood agar plates37degC 98.6degF aerobic on blood agar plates42degC 107.6degF microaerophilic on Skirrow medium42degC 107.6degF aerobic on Skirrow medium  <response>: The isolation and identification of C. jejuni can be achieved using special culture characteristics. Three requirements must be met. First, a selective medium is needed. There are several widely used selective media: Skirrows medium uses vancomycin, polymyxin B, and trimethoprim; other selective media contain cefoperazone, other antimicrobials, and inhibitory compounds. The selective media are suitable for isolation of C. jejuni at 42oC 107.6degF; when incubated at 36-37oC 96.8-98.6degF, other Campylobacters and bacteria may be isolated. Finally, incubation must be in an atmosphere with reduced oxygen and added carbon dioxide. The colonies appear to be colorless or gray and may be watery and spreading or round and convex. 