Although epidemics have occurred throughout human history, at the moment they seem to be gaining strength. In the last 20 years alone, coronaviruses have caused three major outbreaks worldwide. Even more worryingly, the interval between these three pandemics is small. Suresh V Kuchipudi is a virologist and assistant director of the Animal Diagnostics Laboratory at Penn State University, which studies zoonotic viruses. Zoonotic disease is what can be transmitted from pets to humans. He observed that most of the pandemics have something in common, namely that they always start in Asia or Africa, and we do not realize the reasons that provoke them. With this material we will consider the analysis of the virologist.