Studies on the risk of perinatal transmission of bovine leukemia virus and pathogenic mechanism of enzootic bovine leukosis

2016 Fiscal Year Final Research Report

• Project/Area Number: 26850175
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Animal production science
• Research Institution: University of Miyazaki
• Principal Investigator: MEKATA Hirohisa 宮崎大学, テニュアトラック推進機構, 助教 (90633264)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: BLV / 牛白血病 / 垂直感染 / 感染ウイルス量

Outline of Final Research Achievements

The perinatal transmission of bovine leukemia virus (BLV) plays a critical role in the spread and persistence of BLV infection in cattle herds. The purpose of this study was to examine the frequency of perinatal infections and to investigate some risk factors associated with infection. 18.6% were infected with BLV. Maternal viral load was significantly correlated with the frequency of perinatal infection, and more than 40% of newborn calves born to dams with high viral loads were infected with BLV. The results of this study could contribute towards developing effective eradication programmes by providing necessary data for replacement of breeding cow in the field.

Free Research Field

獣医感染症学