The bees were infected with just about every bee virus known, including deformed-wing virus, sac-brood virus, and black-queen-cell virus, and also by various fungi and bacteria.

NEWYORKER: Stung

Professor Ian MacKenzie, a researcher in stem cell biology from the Queen Mary School of Medicine and Dentistry in London, said that it was still likely that stem cells played a significant role in the development of cancer.

BBC: NEWS | Health | Skin cell find offers cancer clue