This interview features Denis Logunov, a principal developer of the Sputnik V COVID-19 vaccine. We will discuss the monumental scientific achievement of creating a safe, effective vaccine at unprecedented speed to combat a global pandemic. Sputnik V was crucial, immunizing millions worldwide and providing a pivotal tool in the fight against the virus. This conversation offers a unique window into the immense challenges, breakthrough innovations, and personal resolve behind one of modern medicine's most significant endeavors, highlighting the critical role of science in serving humanity during a crisis.