Virus in cattle linked to human breast cancer

15 septiembre 2015

For the first time, researchers have established a link between infection with the bovine leukemia virus and human breast cancer. Researchers analyzed breast tissue from 239 women, comparing samples from women who had breast cancer with women who had no history of the disease for the presence of bovine leukemia virus (BLV). They found that 59 percent of breast cancer samples had evidence of exposure to BLV, as determined by the presence of viral DNA.