Special Lecture

• Epidemiology of Clostridium botulinum......Shinichi NAKAMURA...... 1

Reviews

• Principle of Chemiluminescent Assay and Application to Food Hygiene......Shiro YAMASHOJI, Susumu KAWASAKI, Atsushi ASAKAWA, Shinichi KAWAMOTO and Kenji ISSHIKI...... 6
• Recent Development and the Property of New Antimicrobial Agents for Environmental Contamination Microbes in the Food Factory......Hiroki KOURAI...... 13

Original

• Histochemical Virus Observation in the Oyster Digestion Diverticulum with in situ Hybridization Method......Norihiko YAMAKI, Yo UEKI, Atusi SUTO, Keiichi SAKAI, Naoko KIKUCHI, Ikuo GOTO, Yoko OKIMURA, Kazuo AKIYAMA, and Yukinobu TOHYA...... 21

Case

• Outbreaks of Food Poisoning Caused by Campylobacter Associated with Chicken Meat......Yoko ANDO, Kazuaki ONO, Yukie OZEKI, Hideaki SUGITA, Kayoko OHTSUKA, Toshihiko MASUTANI, Hidemi SATO, Rumiko KOBAYASHI and Keiko YANAGAWA...... 27

• Proceeding of the Society...... 31
• Information...... 32
• Notes to Contributors...... 34