Vaccines can protect against more than their targets, Wind farms dispatched by Ian Woolf, From 2006: Lindsey Gray illuminates Glow worms, From 2009: Celine Steinfeld hosts a science quiz with Jacqui Hayes and Sarah Wood, Presented and produced by Ian Woolf Support Diffusion by making a contribution Support Diffusion by buying through affiliate links Join Shopback for discounts all over the web - they pay me $5 AND YOU GET PAID $5!