Whyville is an on-line world for kids and families. It is FREE to join and use and has many activities and learning opportunities. One of the many interesting and informative activities is exploring the Whyville CDC Lab. Here you can learn about diseases and viruses, how they spread and how scientists work towards making a cure or a vaccine. Click on the button below to visit the Whyville CDC Lab! WhyPox and the Dragon Swooping Cough are two imaginary diseases that are used to teach and learn about how real diseases work.