Parents mourning the loss of their 22-month-old daughter to suspected meningococcal disease say the illness came without warning.

A new vaccine therapy, derived from rabbit calicivirus disease (RCD), could offer hope for colorectal cancer sufferers, researchers say.

A cancer vaccine approved in the US is potentially paving the way for effective treatments to become widely available in two or three years.

Papua New Guinea's prolonged cholera outbreak has surfaced in the capital Port Moresby, claiming three lives.

Compared to other mammals, humans produce low numbers of viable sperm.

An apparently healthy man has become the first person in the world to be prescribed a medicine based on an analysis of his genome.

Elton John says he's been sober for 20 years, since shortly after the death of an Indiana teen with Aids who the musician credits with inspiring him to turn his life around.

Results from the pig-cell trial so far indicate improved control of blood-sugar levels and reduced need for insulin injections.

Smoking, drinking too much, inactivity and poor diet can collectively age you by 12 years.

Medical researchers have begun to elucidate the complex role of genes in human health.

Professor Richard Faull has spent 35 years studying the human brain so he can help people affected by brain disorders including Parkinson's, Alzheimer's and Huntington's disease.

Up to 20 million people in Bangladesh are at risk of suffering early deaths because of arsenic poisoning - the legacy of a well-intentioned but ill-planned water project.

The swine flu virus is being blamed for a leap in the number of pregnant women dying in New Zealand and Australia.

MPs probing the tobacco industry got personal with the family of a Maori smoking victim describing the impact of his addiction and death.

A phone call by Emily Cotton's anxious mother probably saved the little girl's life after she became ill with a rare disorder.