Received: 12 February 2019
Accepted: 6 September 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: All experimental procedures were conducted following approval from the local committee for animal studies according to the Hokkaido University (17–0024). Collection of blood samples from healthy (non-treated) and BLV-infected cattle are announced as simple general permission procedure for the use of blood samples for assays. Verbal informed consent was fully obtained from all animal owners.
: Not applicable.
: The authors declare that they have no competing interests.