Germs are all around us, but they're too small to see. Many germs are harmless, but two kinds, viruses and bacteria, can make you sick! How? Read and find out! This classic Level 2 Let's-Read-and-Find-Out picture book is all about germs, how they can make you sick, and how your body works to fight them off.

Now rebranded with a new cover look, this book features rich vocabulary and simple diagrams to explain why you feel poorly when you're sick and how your body keeps you healthy by producing antibodies. Both text and artwork were vetted for accuracy by Dr. Melanie Marin.

Let's Read and Find Out Science的人体2点读套装，精选自该系列Stage2部分（这一阶段适合6~12岁左右的孩子阅读），共七册，分别概述了“骨骼”、“皮肤”、“打嗝发抖打哈欠”、“食物的消化过程与人的消化系统”、“心脏和心跳”、“血管和血细胞”以及“病菌”等七个关于人体方面的主题。