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A speech screen for autism?

Automated analysis of audio recordings could accelerate language research.

Therapeutic HIV vaccines show promise

Clinical trials hint that treatment strategy is not a dead end.

Success at last for anti-HIV gel

Vaginal gel cuts HIV infection in women by half.

The gut's 'friendly' viruses revealed

DNA sequencing reveals a new world of bacterial viruses in our intestines.

Diabetes drugs offered fresh start

As FDA advisers vote for restrictions on Avandia, researchers reveal a way to make such drugs safer.

Mouse pain study stirs debate

Canadian scientists vindicated after being accused of mistreating laboratory animals.

Ecology: A world without mosquitoes

Eradicating any organism would have serious consequences for ecosystems — wouldn't it? Not when it comes to mosquitoes, finds Janet Fang.

Retraction recommended for enzyme-chip paper

Reactome array study should not have been published, says ethics committee.

Ageing cells lose protein pumps

Longevity of cells could be linked to levels of cellular pumps that get rid of toxic cell products.

Japanese monkey deaths puzzle

Researchers claim outbreaks of unknown haemorrhagic illness are no threat to humans.

Brain-imaging programme suspended after violations

FDA investigation at Columbia University serves as warning to other centres, say experts.

Interesting environment wards off cancer

Making home more complicated increases stress in mice but keeps them healthier.

Consumer gene testing in the hotseat

A week of hearings sows uncertainty for the fledgling consumer genomics industry.

'Spontaneous generation' of prions observed

Metal wires 'catalyse' appearance of rogue proteins from healthy brain tissue.

Souped-up antibody fends off HIV

Targeted search yields proteins that neutralize nearly all HIV strains.