The Need to Update Respiratory Disease Surveillance System and Indigenization of the Pneumonia of Unknown Cause Surveillance System in Iran according to the COVID-19 Pandemic

      The Need to Update Respiratory Disease Surveillance System and Indigenization of the Pneumonia of Unknown Cause Surveillance System in Iran according to the COVID-19 Pandemic   Seyed Hasan Adeli1,  Mohammad Aghaali2   1 Associate Professor, Department of Internal Medicine, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran 2 Assistant Professor, Department of Epidemiology, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran [email protected] E-mail:  letter to Editor                                                             .