Tolerance to multiple stresses in 121 clinical strains of Camplyobacter jejuni. A) Resistance of C. jejuni to disinfectant (PAA) on chicken. B) Freeze-thaw tolerance of human clinical strains of C. jejuni on chicken. C) Tolerance to heat treatment of clinical C. jejuni strains in milk. D) Osmotolerance of clinical strains of C. jejuni. E) Percentage of stress-tolerant strains in each aerotolerance group: HAT (n = 65), AT (n = 46), and OS (n = 10). Results are representative of 3 independent experiments, and similar results were observed in all repeated experiments. Solid horizontal lines indicate average CFU. AT, aerotolerant; HAT, hyperaerotolerant; NS, not significant; OS, oxygen sensitive. *p<0.00001; †p<0.01; ‡p<0.05.