Welcome to the battlefield. You have an incredible opportunity to fight against such dangerous viruses as bubonic plague and yellow fever. With the help of modern medicine, you can not just defeat them, but make them your friends and assistants. The comic will tell about microorganisms, pathogenic bacteria and the most dangerous epidemics in the history of mankind. You will find out: what is immunity and why it is needed; who discovered bacteria; how vaccinations work; what diseases we have already defeated, and who else are we looking for an approach to. Read it. Learn new things. And wash your hands.