**4. Conclusions**

In this study, the prevalence of the pathogen, antibiotic resistance, genetic diversity, and the presence of *cdt* genes in *Campylobacter* isolates were identified from poultry in Korean wet markets. Although the prevalence of *Campylobacter* in poultry was relatively low compared to that in other countries, antibiotic resistance patterns of the isolates were similar to those in other countries. In addition, geographic genetic diversity was not observed and a high proportion of *cdt* genes were present in *Campylobacter* isolates. Therefore, *Campylobacter* contamination should be decreased in order to prevent and treat the *Campylobacter* foodborne illness.

**Acknowledgments:** This research was supported by a grant (14162MFDS077) from the Ministry of Food and Drug Safety in 2015.

**Author Contributions:** Jeeyeon Lee participated in the design and coordination of the study, performed the experiments, analyzed the data, and wrote the manuscript. Jiyeon Jeong participated in the design of the study, performed the experiments and analyzed the data. Heeyoung Lee participated in the design of the study and helped draft the manuscript. Jimyeong Ha, Sejeong Kim, Yukyung Choi, and Hyemin Oh performed the experiments and helped the draft the manuscript. Kunho Seo participated in the design and coordination of the study. Yohan Yoon participated in the design of the study, oversaw the data collection in the study and contributed to the manuscript revision process. Soomin Lee also participated in the design of the study and contributed to the manuscript revision process. All authors read and approved the final manuscript.

**Conflicts of Interest:** The authors declare no conflict of interest.
