Abstract

The ability of BIV strain R29 to infect bovine cell lines in the presence or absence of a functional lentiviral Tat protein is described. Jembrana disease virus (JDV) Tat protein was stably expressed in MDBK cells. No viral replication could be detected in this cell line after infection with BIV R29. Transfection of MDBK cells and MDBK Tat expressing cells with BIV R29 proviral DNA established that BIV R29 could not replicate in MDBK cells. Whether viral entry into MDBK cells is also a block to BIV R29 infection of MDBK cells has yet to be established.

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