The epidemic is like a dance, like a round dance, which will not allow anyone to remain just a spectator: in this terrible dance there are no leaders or followers, here everyone fights for himself and everyone dies along with everyone else. But Agnia Smolskaya cannot save only herself and her own family. As a doctor fighting a terrible virus, she risks more than others, and as an expert advising the investigation, she is obliged to know which of her colleagues and patients have gained access to the laboratory where they are experimenting with death... Previously, the book was published under the title “The Vaccine of Death”