Scientists have shown that a toothpaste ingredient could be used as an anti-malarial drug. Spread by mosquitoes, malaria is caused by Plasmodium parasites, and kills over half a million people every year, 70% of them children. In recent years the parasite has also become resistant to most of the existing anti-malarial compounds. This new discovery, by researchers at the University of Cambridge, was aided by Eve, an artificially-intelligent 'robot scientist'. Chris Smith was joined by Steve Oliver who was part of the investigation.