Adults get flu 'about once every five years'

Adults catch real flu about once every five years, scientists calculate, based on a field study in China. Although many of us will feel ill more often than this, other flu-like infections are to usually blame, the international team says. The scientists tested blood samples from 151 volunteers aged between seven and 81, to gauge how often flu infections strike.

[godmother]

インフルエンザに感染しない人とする人が大衆に一定割合いて、かかる人が約5年周期とすると、いつもビクつく必要はないな、など思う。そう言いながらもう10年位かかっていないかも。そろそろ気をつけないと。

[frothmouth]

“Adults catch real flu about once every five years, scientists calculate, based on a field study in China. Although many of us will feel ill more often than this, other flu-like infections are to usually blame, the international team says. The scientists tested blood samples from 151 volunteers ag