1. Campylobacter|chicken meat|Salmonella|spent hen|quantitative test|antimicrobial resistance1） Codex. Guidelines for the control of Campylobacter and Salmonella in chicken meat. CAC/GL 78-2011 （2011）.
2. 2） Japanese Association for Infectious Disease/Japanese Society of Chemotherapy; JAID/JSC Guide to Clinical Management of Infectious Disease/Guideline-preparing Committee; Intestinal Infections Working Group; Ohnishi, K. et al. JAID/JSC guidelines for infection treatment 2015—Intestinal infections. J. Infect. Chemother., 24, 1–17 （2018）.
3. 3） Kamei, K., Kawabata, H., Asakura, M., Samosornsuk, W., Hinenoya, A., Nakagawa, S., Yamasaki, S. A cytolethal distending toxin gene-based multiplex PCR assay for Campylobacter jejuni, C. fetus, C. coli, C. upsalinensis, C. hyointesitinalis, and C. lari. Jpn. J. Infect. Dis., 69, 256–258 （2016）.
4. 4） Waltman, W. D., Horne A. M., Pirkle, C., Dickson, T. G. Use of delayed secondary enrichment for the isolation of Salmonella in poultry and poultry environments. Avian Dis., 35, 88–92 （1991）.
5. 5） Murakami, K., Horikawa, K., Ito, K., Otsuki, K. Environmental survey of Salmonella and comparison of genotypic character with human isolates in Western Japan. Epidemiol. Infect., 126, 159–171 （2001）.