An exhaustive analysis of 51 whole genomes of breast cancers did not show any trace of BLV DNA .
An exhaustive analysis of 51 whole genomes of breast cancers did not thus excludes clonal insertion ( integration into human genomic DNA ) of BLV in breast tumor cells .
An exhaustive analysis of 51 whole genomes of breast cancers did not show any trace of BLV DNA and thus excludes clonal insertion ( integration into human genomic DNA ) of BLV in breast tumor cells .