ABSTRACT
Every year we see many changes in the world around us. One of these changes is the climate and weather, and it could be one of the reasons for changing behaviors between humans and animals, which could cause zoonotic diseases. We usually face new diseases that infect a growing population leading to a pandemic. Different reasons are leading to an increase in the emergence of new infections. Some of these diseases can be associated with zoonotic diseases and the diverse world of viral genetics and its failures. Furthermore, properties like mutations and also unknown effects of these mutations on the virulence of the agents make it challenging to trace new diseases. As we know, preventing emerging diseases is inevitable and viral diseases are dangerous, and some viruses can spread quickly and cause an endemic or pandemic. As was noticed during the recent pandemic, the need to study emerging diseases in the field of virology has become more and more apparent to us. In this review, we want to look at how we could monitor and control these diseases with new approaches and what should be done when a disease emerges. Moreover, we will investigate risk factors, ways to deal with emerging viral infections, new treatments that make the condition better when a person gets infected, and the future of these diseases. We will also study the ways to deal with pandemics with the new generations of vaccines.