A VIRUS IN CATTLE LINKED TO HUMAN BREAST CANCER.

A study has revealed the link between bovine leukemia virus and 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. By contrast, 29 percent of the tissue samples from women who never had breast cancer showed exposure to BLV. Bovine leukemia virus infects dairy and beef cattle's blood cells and mammary tissue. The retrovirus is easily transmitted among cattle primarily through infected blood and milk, but it only causes disease in fewer than 5 percent of infected animals.This is another reason to handle animals,organs and blood with utmost care. Read more about the study here;http://www.sciencedaily.com/releases/2015/09/150915105004.htm