Contagion is the brand new film from Hollywood to remind us of the danger lurking under our very fingertips. It's films such as these that make us want to take a look at the lack of or need for hygiene. It strikes fear into our very core with the enormity of it all. A pandemic is a much more fearsome thing than war. For who can reason with disease? The possibilities of cure juxtaposed with the possibility of persuading a fellow human being, doesn't fare too well. It's probably a good thing that Hollywood reminds us of this with its cyclic obsession with outbreak films. Here's a look at a few that teach us the lesson of 'prevention is better than cure' while they entertain.