Over three quarters of flu infections contracted last year did not have any symptoms, researchers found.
Most of the infections (77%) didn't have any symptoms despite one in five people contracting either seasonal flu and the 2009 H1N1 influenza pandemic.
According to The Lancet Respiratory Medicine Journal:
- Researchers found that on average, 18% of people who had not received a flu jab were infected with flu each season.
- And only 17% of those infected felt ill enough to visit their GP.
- Over the winter flu season, 4.7% of people were believed to have flu compared to 6% the previous year.
- Some 5% of children were reported to have flu, compared to almost 8% the previous year.
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