8% of flu sufferers got strain not covered by vaccine

Health officials from around the world have been meeting to decide what next year's influenza will contain, following a winter where 8% of people who got the flu are believed to have contracted a rogue strain of the virus that wasn't covered by the flu shot. World Health Organisation recommendations at around this time each year give national public health authorities a guide for the development and production of flu vaccines for the following year. It takes at least six months to produce the vaccines - by which time a new strain might have emerged.