This is really cute and you and your children can learn more about different types of microbes. A guy called Drew Oliver created them. When you buy a pack, it comes with a soft plushies of the microbe you choose and information about that microbe. Um, most of the microbes are things that are like the flesh eating microbe. ( seen in the picture) If you do think you want to learn more about them, you can go to : http://www.giantmicrobes.com/
There are also such thing as black death and mad cow. WOW!