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Sshhh! No microbe must know about this book! It's all about them: who they are, what they look like, why they cause diseases, and how to protect yourself from them.

Together with the curious Marichka and her kitten, you will find yourself in a real laboratory where you can look at microbes under a microscope and see how our body fights them off. You will visit a factory where vaccines are made and meet the scientists who develop them. And at the end of the book, you will be able to help the characters create their own vaccine against hitherto unknown infections. There are lots of interactive activities, games, and stickers in the book! And remember - germs don't care about it!

The book explains in detail and simply how the body protects us from infections, and also tells about the history of the invention and the principle of vaccines. The book also contains useful tips on how to prepare for vaccination and not be afraid of injections; how not to get caught up in anti-vaccination campaigns and how to know when to get vaccinated. It will help readers of all ages understand how immunity and vaccines work.