2013/01/01 by Kenji MURAKAMI, Kenji Murakami, Sota Kobayashi +7 · 1 citation
Immunology and Microbiology · #T-cell and Retrovirus Studies
paper · pdf · doi:10.1292/jvms.12-0374
openalex publication_date 2013/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
A nationwide survey of bovine leukemia virus (BLV) infection was conducted among dairy and beef breeding cattle in Japan from 2009-2011 using an enzyme-linked immunosorbent assay. Of a total of 20,835 cattle tested, 35.2% were seropositive for BLV and the animal type-level seroprevalences in dairy and beef breeding cattle were 40.9 and 28.7%, respectively. By the time animals were 1 year old, 21.0% of dairy and 13.7% of beef breeding cattle were considered infected. Our findings indicate that BLV is widespread among dairy and beef breeding cattle in Japan with the BLV seroprevalences approximately 10- and 4-fold higher, respectively, than previously reported for 1980-1982 in Japan.