Figure 1.

The Iran national screening program algorithm of response to the COVID-19 outbreak (started on March 17, 2020). Screening is done by primary care providers or people themselves via a website or a phone number based on screening questions. Suspected cases undergo further evaluations by the COVID-19 response team in the special 16-hour medical center. Based on body temperature, peripheral capillary oxygen saturation (SpO2), respiratory rate, lung scanning (if available), and COVID-19 diagnostic test, people isolate at home, isolation centers or become hospitalized in designated hospitals.