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.
Hope for flu vaccine as nearly half of Brits are immune
19 July 2015
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.