Vote for your NERS story of the year - medicine

This is Round Three of the NERS Stories of the Year Reader's Poll. In an attempt to find the most interesting posts on this blog over the last year (leave me the illusion that there were some), I'm doing a series of nine polls, each focused on a specific field of science. So far, we've had animal behaviour and palaeontology. Today, medicine.

Here's your selection:

• Rapamycin - the Easter Island drug that extends lifespan of old mice
• From Spanish to swine - how H1N1 kicked off a 91-year pandemic era
• Fishing expedition reveals unexpected link between Alzheimer's and prion diseases
• Genome sequencing reverses a faulty diagnosis for a genetic disorder
• Gene therapy gives full colour vision to colour-blind monkeys
• The placebo effect affects pain signalling in the spine
• Ebola found in pigs (thankfully, it's the one harmless type)
• Retrocyclins: a defence against HIV, reawakened after 7 million years