SARS-CoV-2 Seroprevalence in People Referred to Private Medical Laboratories in Different Districts of Tehran, Iran from May 2020 to April 2021

Dear Editor,The first cases of severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)in Iran were identified in Qom on February 19,2020,which soon spread throughout the country(Yavarian et al.2020).As of May 12,2021,2,691,352 confirmed cases of COVID-19(the disease caused by SARS-Co V-2)and 75,568 associated deaths have been reported in the country by Iran Ministry of Health.