Are TSEs all in the Prions?

Controversial research into the transmissible spongiform encephalopathies (variant CJD, BSE and scrapie) questions current thinking about the role of prions in spreading the diseases. A new malaria-risk map means funding and drugs can be better targeted, and that deaths from malaria in some places could be halved in two years. The man taking thousands of years worth of frozen climate records home from Antarctica as an ice core. Plus, the bacteria that hitch a ride on raindrops and snow, and decoding the history in your hair.