First demonstration of bovine herpesvirus 2 infection among cattle by neutralization test in Japan.
Seroepidemiological surveys were performed on neutralizing antibody to bovine herpesvirus 2 (BoHV-2) among cattle in Japan. A total of 1,819 sera were collected from cattle in 27 prefectures from 1997 to 1998. Antibodies were detected in only 18 sera collected from 4 prefectures. However, the most prevalent areas of the infection were found in two islands located in the subtropical zone. Additional 353 sera were collected in three including these islands in 1999-2001. The antibody-positive rates in the farms in these islands ranged from 10% to 81.1%. It was confirmed that BoHV-2 was prevalent in these areas. However, the infection seemed to be latent, because no diseases have been noticed. This is the first report showing the presence of BoHV-2 infection among cattle in Japan.
Imai
Kunitoshi
K
Hokkaido Research Station, National Institute of Animal Health, 4 Hitsujigaoka, Toyoshira, Sapporo, Hokkaido 062-0045, Japan.
Ishihara
Ryoko
R
Nishimori
Tomoko
T
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000821:virology*; D005843:Geography; D006561:Herpes Simplex / Q000453:epidemiology / Q000662:veterinary*; D001911:Herpesvirus 2, Bovine; D007564:Japan / Q000453:epidemiology; D009500:Neutralization Tests / Q000662:veterinary; D015995:Prevalence