The Coronavirus has stolen the headlines for the last two years or so. However, there is another illness that we need to be paying attention to as well which is responsible for a huge number of hospitalisations every year without fail. It is, of course, influenza or the flu as it is more commonly called. As with the Coronavirus a vaccine to stop the worst effects of the flu has been developed over many years. A vaccine may stop you from getting the illness altogether, or becoming very ill with it, by giving you immunity to it. In other words the body thinks it has already had the illness and the white blood and T cells that fight infection have the right tools to be able to protect our body. How is the vaccine manufactured?