"In week seven we received 950 lab-confirmed cases of influensa and in week eight the number was almost as high: 948. We know that it is only the tip of the iceberg, because most cases do not visit the hospital. Normally, we estimate the actual number of cases to be between 100 to 1,000 times greater," Carnahan told newspaper Dagens Nyheter.
During winters with a larger-than-normal number of flu cases, there are usually 1,000-5,000 more people that die than normal in Sweden. The risk of dying from complications of influensa are greatest for medical risk groups and people over the age of 65, who are recommended to get vaccinated against the flu.