Viruses — invisible enemies and at times reluctant allies — engage in a ceaseless struggle for survival.
In this book, I have sought to unveil the secrets of their microscopic wars — battles upon which the health and fate of all humankind depend. Each chapter is a standalone story in which viruses fight for dominance, invading new territories and annihilating their rivals.

My goal is to help readers understand how this hidden world works, why viruses are so dangerous, and how their internal warfare affects us all.
May this book serve as a window into the microcosm where a real war for life is waged.

Thank you for holding it in your hands.
— Bakhtiyor Naziri, 2025