Prevalence of <i>Vibrio parahaemolyticus</i> Causing Acute Hepatopancreatic Necrosis Disease of Shrimp in Shrimp, Molluscan Shellfish and Water Samples in the Mekong Delta, Vietnam
Tran Thi Hong To,
Haruka Yanagawa,
Nguyen Khanh Thuan,
Du Minh Hiep,
Doan Van Cuong,
Ly Thi Lien Khai,
Takahide Taniguchi,
Ryoichi Kubo,
Hideki Hayashidani
Affiliations
Tran Thi Hong To
Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
Haruka Yanagawa
Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
Nguyen Khanh Thuan
Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
Du Minh Hiep
School of Agriculture and Aquaculture, Tra Vinh University, 126, Hamlet 4, Ward 5, Tra Vinh, Vietnam
Doan Van Cuong
Research Institute for Aquaculture No.2, 116, Ward Da kao, District 1, Ho Chi Minh, Vietnam
Ly Thi Lien Khai
Faculty of Agriculture, Can Tho University, Campus II, 3/2 Street, Ninh Kieu District, Can Tho City, Vietnam
Takahide Taniguchi
Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
Ryoichi Kubo
Kanto Chemical Co. Inc., 2-1, Nihonbashi Muromachi 2-chome, Chuo-ku, Tokyo 103-0022, Japan
Hideki Hayashidani
Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
A total of 481 samples, including 417 shrimp and molluscan shellfish samples from retail shops and farms and 64 water samples from shrimp and molluscan shellfish farms in the Mekong Delta located the southern part of Vietnam, were examined for the presence of Vibrio parahaemolyticus (VpAHPND) caused acute haepatopancreatic necrosic disease (AHPND) in shrimp. VpAHPND strains were isolated in two of 298 (0.7%) molluscan shellfish samples from retail shops, seven of 71 (9.9%) shrimp samples from shrimp ponds, and two of 42 (4.8%) water samples from shrimp ponds. VpAHPND strains were classified into two types of O antigen, including O1 and O3, in which O1 was the predominant. VpAHPND strains isolated showed high resistance rates to colistin (100%), ampicillin (93.8%), and streptomycin (87.5%). These results indicate that VpAHPND is widely prevalent in environment in the Mekong Delta, Vietnam.
