FIG. 2.

Cold (4°C) tolerance of C. jejuni in MHB and CR. CJ35 (squares) and CJ45 (triangles) were stored in MHB (closed symbols) or in CR (open symbols). The result for CJ45 in MHB on day 28 was below the limit of detection (10 CFU/ml). Data shown are means from duplicate plates in a representative experiment and were collected as described in Materials and Methods. The general linear models procedure was utilized to compute all statistical inferences. The slope of each data curve was calculated and compared. No significant differences were found among these four sets of data (P > 0.05).