biotech company Valneva are behind the project, with manufacturing taking place at their Livingston plant, and their unique VLA2001 inactivated vaccine differs from others already on the market.Valneva’s product contains a dead, or inactive, version of Covid-19 that won’t cause disease but can trigger an immune response.Mr Harnden was speaking as the deputy chairman of the UK’s Joint Committee on Vaccination and Immunisation when he said the four different types of vaccine which could potentially be on offer may help tackle new variants of the virus.He told the Science and Technology Committee: “We have potentially got four types of vaccines which are going to be available – at the moment we’ve got two vaccines which we’re using – the.