Short communication: Bovine leukemia virus infection in adult cows does not interfere with foot-and-mouth disease vaccination

JAWORSKI, JUAN PABLO; SALA, JUAN MANUEL; CAPOZZO, ALEJANDRA

JOURNAL OF DAIRY SCIENCE

AMER DAIRY SCIENCE ASSOC-ADSA

Año: 2018 vol. 101 p. 11247 - 11250

0022-0302

Bovine leukemia virus (BLV) is a widespread infection that can affect innate and adaptive immunity; however, little information exists on how BLV infection affects foot-and-mouth disease virus (FMDV) vaccination programs. Vaccination for FMDV is compulsory in many regions of the world, and vaccine efficacy is monitored by measuring total antibodies against this virus. In a previous study, we observed that BLV-infected heifers produced a lower amount of antibodies in response to FMDV at first vaccination. In this follow-up study, we show that BLV status does not interfere with the total level and avidity of anti-FMDV?specific antibodies induced after repetitive routine vaccination in adult cattle. This is relevant information for the proficiency of vaccine-based FMDV control programs in BLV-endemic regions