Viruses threaten human health continuously. The increasing number of aged persons and immunocompromised hosts, and activities of international trade and travel are contributing factors to the acceleration of viral transmission. In this article, the structure and replication of viruses, viral stability in the environment, and disinfection of major viruses are described. Reduction of viral transmission through proper disinfection is an important control measure of viral infection. The efficacy of a disinfectant depends on several factors such as the type and concentration of the disinfectant, reaction time, amount of virus, and characteristics of the virus. Understanding the characteristics of viruses may help establish more effective infection control strategies.

Keywords: Virus, Disinfection, Infection control