The incidence of cancers has been rising for the last half century, and the question is why? Up to 20 percent of all cancers are caused by infectious agents, chiefly viruses. We’ve known this was possible for a century, when a cancer-causing virus was discovered in chickens. The idea was considered such heresy that
— Read on nutritionfacts.org/2020/01/28/do-poultry-viruses-cause-human-cancers/
Cattle are also infected with BLV. Bovine Leukemia Virus. It’s linked to breast cancer in women.