October 2003

• Gene tweak halts mad cow disease - Premium content

  Toxic by-product, not rogue proteins, may cause fatal brain wasting.

  31 October 2003

• Cheap test monitors HIV drugs - Premium content

  Dried blood spots could track developing world treatment success.

  31 October 2003

• Designer transplant drug shows promise in monkeys - Premium content

  Compound may block organ rejection without side-effects.

  31 October 2003

• Brain fakes it - Premium content

  Nerve-cell activity when eyes are shut reveals internal views of the world.

  30 October 2003

• Seafloor vents spawn spat - Premium content

  Ancient springs are thousands of years old, not billions, say geologists.

  30 October 2003

• Nanoparticles may help fight fraud - Premium content

  Magnetic barcodes could provide counterfeit-proof tagging.

  30 October 2003

• SARS sources widen - Premium content

  Labs brace for disease comeback.

  30 October 2003

• Calculations illustrate fossil-fuel crisis - Premium content

  Plant-to-oil equations point up unsustainable profligacy.

  29 October 2003

• New EPA head confirmed - Premium content

  Senate vote gives Michael Leavitt the reins at Environmental Protection Agency.

  29 October 2003

• Pharmacy data reveals impact of smoking ban - Premium content

  Bioterror surveillance throws up health intelligence.

  28 October 2003