They also claim that diet, insulin resistance, smoking or patterns of infection may affect the development of both cancer and pre-eclampsia and their effects may differ between populations.

BBC: NEWS | Health | Pregnancy disorder link to cancer

While no definitive link between prion diseases in animals and CJD in humans has been established, the mechanism and progression of the diseases are so similar that most scientists are convinced that infection with BSE prion may under certain circumstances lead to the development of vCJD in humans.

BBC: vCJD and BSE - the link

This monitored children for growth development and the number of times they had a diarrhoea-related disease or parasite infection.

BBC: Less brainpower hits stunted youth