Descriere

• Author : Christine Butterworth
• Publisher ‏ : ‎ Pacific Learning
• Language ‏ : ‎ English
• Reading age ‏ : ‎ 9 – 12 years

Most people recover rapidly from flu, but it spreads quickly and sometimes it can be very serious. Read about flu outbreaks that have traveled the world and what scientists can do to prevent them.Text Type: ExplanationTheme/Topic:Medicine, Life Science