The study of the biology of viruses and viral diseases, including their distribution, biochemistry, physiology, molecular biology, ecology, evolution, and clinical aspects, is referred to as virology. Virology is a branch of study that focuses on traditional virology fields like classification, structure infection, and therapy, as well as advanced scientific domains. Virology is frequently lumped in with microbiology and pathology. Virology's early years were reliant on breakthroughs in the chemical and physical sciences; yet, viruses quickly evolved into tools for examining basic biochemical processes in cells.