Did you know that there are quadrillions of germs in existence? And that hundreds of billions of germs may be in the room around you—and inside you as well? Acclaimed creators Seth Fishman and Isabel Greenberg explore the five main types of germs—bacteria, viruses, protozoa, fungi, and helminths—and the human immune system that protects us against them. Germs live with—and inside!—us, and so we need to know how to live with them. Especially when so many kids have so many questions about germs. With fascinating information and vibrant illustrations, Up Your Nose is perfect for curious children and classroom learning.