Scientists have developed a vaccine against cancer that reduces the size of breast tumours by more than 80 per cent when tested on laboratory mice.

Scientists have found boys with autism have larger-than-average brains with more neurons in the prefrontal cortex, the part linked to social relationships and communication.

The annual flu jab given to hundreds of thousands of people this winter provides only limited protection against the illness, researchers say.

Michele Bachmann's star is falling rapidly and she "does not have the resources or ability" to remain in the Republican presidential race beyond February's Iowa caucuses, according to her former campaign manager.

Scientists believe they have made a breakthrough in the development of a new vaccine against tuberculosis which kills an estimated 1.7m people in the world each year.

The sleep condition narcolepsy could be prevented with a flu vaccine, researchers have discovered.

A campaign group which helped force the Government into an embarrassing u-turn over plans to sell off forests has set its sights on stopping a planned cull of badgers.

Evidence of overwhelming public opposition to the proposed cull of badgers was withheld until the Government had decided to go ahead with the controversial plan.

Researchers have developed an antibody that could treat all strains of influenza A

A flu vaccine given to millions of Britons, including children, is not suitable for those aged under 20, European regulators said today.

The Government has announced controversial plans to introduce a major badger cull in England to tackle TB in cattle.

The CIA set up a fake vaccination initiative in the months leading up to the killing of Osama bin Laden, in an attempt to obtain DNA samples from members of his family.