Three quarters of people with seasonal, pandemic flu have no symptoms

Around 1 in 5 of the population were infected in both recent outbreaks of seasonal flu and the 2009 H1N1 influenza pandemic, but just 23% of these infections caused symptoms, and only 17% of people were ill enough to consult their doctor. These findings come from a major new community-based study comparing the burden and severity of seasonal and pandemic influenza in England over 5 years.

by via Latest Science News -- ScienceDaily