You’ll discover what they are, where they come from and what they do, as well as which ones are good and which can be harmful. Especially pertinent are the clear explanations about how viruses spread, the role of antibodies and the importance of vaccines – essential understanding for us all during this time of the COVID-19 pandemic; in fact, there’s a whole spread dedicated to COVID-19. Packed with clever analogies that make understanding a difficult topic easy, this STEM title is perfect for young budding scientists with an active and enquiring mind and for people of any age who are interested in learning about the natural world and the human body.