Millions of kids get the flu each year. But they usually feel better in a week. This book helps kids find out what causes the flu and how they can feel better too! Easy-to-read text, fascinating photographs, and colorful graphics help young readers explore what's going on inside of them while learning key science concepts. Aligned to Common Core Standards and correlated to state standards. Super Sandcastle is an imprint of Abdo Publishing, a division of ABDO.