Introduces young readers to this fascinating and topical subject.

People talk a lot about germs, but what actually are they? Open the pages of this friendly book to find out. Discover what bacteria and viruses are, how they can spread and lots of different ways to stop them.

"A terrific book... makes a scary topic acceptable and understandable." - Usha Goswami, chair of the Best Science Books for Children: the 2023 Royal Society Young People’s Book Prize