FIG 1.

Beliefs concerning z values (in degrees Celsius) for spores of nonproteolytic C. botulinum. The solid blue line represents z values measured without lysozyme in the recovery media (−LYS), <z> = 6.7°C, and the dashed red line represents z values measured for the HR fraction with lysozyme in the recovery media (+LYS HR), <z> = 9.3°C. In the inset, green squares represent the empirical distribution of the data and the blue line represents the cumulative probability for experiments conducted in the absence of lysozyme in the recovery media at temperatures between 50 and 83°C (n = 338).