Spotted by our webmaster, this is a really neat idea. The BBC have put together a ‘Disease map’ that lets you click on your intended destination region and then shows you a brief overview of the diseases that are present in some or all of the countries there, and the vaccinations that may be required.
This is for advisory purposes only; many countries in the same region have widely differing immunisation entry requirements – it is best to consult your travel agent or GP well before departure to ensure that you fulfil these.