Towards a Blood Test for BSE and CJD

Have Swiss scientists discovered the basis for a simple blood test for the rogue prion particle that causes bovine spongiform encephalopathy (BSE) and Creutzfeldt–Jakob disease (CJD)? A hybrid living/non-living "bio-bot" developed at Cornell Univeristy, USA. How close are we to having a vaccine for the human hookworm parasite? What the study of sound might reveal about the last days of the dinosaurs. A scientific view of Mona Lisa's smile.