Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Nearly half of Britons are immune to the symptoms of influenza, raising hopes that a vaccine could be created that harnesses their natural protection to fight pandemics. A four-year study led by scientists including Professor Sir Andrew McMichael found that 43% of people will not come down with fever, coughs, headaches or fatigue, even if they become infected with the virus. Read the original research paper.