![Inside Health show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/825/small/medical-matters.jpg)
Summary: A single injection that protects you against all strains of flu virus – from the usual winter strains to swine and bird flu. Universal vaccines have been under development over the past few years and are now be trialled in volunteers at a ‘flu camp’ in London. Mark Porter visits the flu camp to find out if the vaccine is all it’s cracked up to be.