Australian researchers have begun clinical trials of a new vaccine to protect newborn infants against rotavirus, a life-threatening diarrhoeal disease that kills half a million children worldwide each year.

Violent behaviour dramatically increases during puberty, according to a study of almost 6000 adolescents in Victoria, Australia and Washington State, USA.

Mount Martha youngster Callum has inspired his family and friends to both run a marathon and launch a major fundraising campaign to support research at Murdoch Childrens.