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Small ruminant lentivirus genotype E lacks the dUTPase subunit and vpr-like gene. Two strains (Roccaverano and Seui) with identical genetic organization have been described, with the env HV1–HV2 domains being the most divergent. Although dUTPase and vpr-like deletions have been involved in the RT fidelity in non dividing cells, both strains were able to replicate efficiently in blood derived macrophages...
RNA transcripts of the B7 family molecule (CD80) are diminished in blood leukocytes from animals clinically affected with Visna/Maedi virus (VMV) infection. This work investigates whether the use of B7 genes enhances immune responses and protection in immunization-challenge approaches. Sheep were primed by particle-mediated epidermal bombardment with VMV gag and env gene recombinant plasmids together...
To extend and complete the epitope mapping of gag-encoded structural proteins, the immunodiagnostic potential of nucleoprotein (NP) of two different small ruminant lentivirus (SRLV) genotypes were antigenically characterized. Respective recombinant counterparts were generated and used in an enzyme-linked immunosorbent assay (ELISA) format to test a panel of sera from infected flocks. Results clearly...
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