Poor Wilma Weekworm has a runny nose and a cough. Her head is very hot and she doesn't feel well at all. Wilma Weekworm is sick. Her friend, the doctor worm, Sebastian Splendid, explains: A virus probably gave her this runny nose. And because Wilma is a clever worm, she naturally wants to know exactly: What is a virus? Why can viruses make you sick? How do you get well again? How can you avoid getting infected by a virus? Child-friendly, and with hands-on pages (e.g. the "virus puzzle" with an exercise on the shapes of circles, squares and triangles), Wilma and Sebastian explain the topic, "Virus & Co" to children in nursery, kindergarten and elementary school. **BONUS** With a learning poster about the most important hygiene rules To Print Not only nowadays, with the spread of Corona virus, this is an important topic to explain our world to our children - without causing panic and fear.