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Prevalence of Covid-19 in Iran: Results of the First Survey of the Iranian Covid-19 Serological Surveillance Programme Publisher Pubmed



Khalagi K1 ; Gharibzadeh S2 ; Khalili D3, 4 ; Mansournia MA5 ; Mirab Samiee S6 ; Aghamohamadi S7 ; Mirmohammadali Roodaki M6 ; Hashemi SM8 ; Tayeri K9 ; Namdari Tabar H10 ; Azadmanesh K11 ; Tabrizi JS12 ; Mohammad K5 ; Hajipour F13 Show All Authors
Authors
  1. Khalagi K1
  2. Gharibzadeh S2
  3. Khalili D3, 4
  4. Mansournia MA5
  5. Mirab Samiee S6
  6. Aghamohamadi S7
  7. Mirmohammadali Roodaki M6
  8. Hashemi SM8
  9. Tayeri K9
  10. Namdari Tabar H10
  11. Azadmanesh K11
  12. Tabrizi JS12
  13. Mohammad K5
  14. Hajipour F13
  15. Namaki S8
  16. Raeisi A14
  17. Ostovar A1
Show Affiliations
Authors Affiliations
  1. 1. Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Epidemiology and Biostatistics, Research Center for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
  3. 3. Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Reference Health Laboratory, Ministry of Health and Medical Education, Tehran, Iran
  7. 7. Deputy of Public Health, Ministry of Health and Medical Education, Tehran, Iran
  8. 8. Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  9. 9. Center for Communicable Disease Control, Ministry of Health and Medical Education, Tehran, Iran
  10. 10. HIV/STI Control Department, Center for Communicable Disease Control, Ministry of Health and Medical Education, Tehran, Iran
  11. 11. Virology Department, Pasteur Institute of Iran, Tehran, Iran
  12. 12. Tabriz Health Services Management Research Center, Iranian Center of Excellence in Health Management, Tabriz University of Medical Sciences, Tabriz, Iran
  13. 13. Endocrinology Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  14. 14. School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Source: Clinical Microbiology and Infection Published:2021


Abstract

Objectives: This study aims to estimate the prevalence of coronavirus disease 2019 (COVID-19) in the general population of Iran. Methods: The target population was all Iranian people aged 6 years and older in the country. A stratified random sampling design was used to select 28 314 people from among the individuals registered in the electronic health record systems used in primary health care in Iran. Venous blood was taken from each participant and tested for the IgG antibody against COVID-19. The prevalence of COVID-19 was estimated at provincial and national levels after adjusting for the measurement error of the laboratory test, non-response bias and sampling design. Results: Of the 28 314 Iranians selected, 11 256 (39.75%) participated in the study. Of these, 5406 (48.0%) were male and 6851 (60.9%) lived in urban areas. The mean (standard deviation) participant age was 35.89 (18.61) years. The adjusted prevalence of COVID-19 until 20 August 2020 was estimated as 14.2% (95% uncertainty interval 13.3%–15.2%), which was equal to 11 958 346 (95% CI 11 211 011–12 746 776) individuals. The adjusted prevalences of infection were 14.6%, 13.8%, 16.6%, 11.7% and 19.4% among men, women, urban population, rural population and individuals aged 60 years or more, respectively. Ardabil, Golestan and Khuzestan provinces had the highest prevalence and Alborz, Hormozgan and Kerman provinces had the lowest. Conclusions: Based on the study results, a large proportion of the Iranian population had not yet been infected by COVID-19. The observance of hygienic principles and social restrictions should therefore continue until the majority of the population has been vaccinated. © 2021 European Society of Clinical Microbiology and Infectious Diseases
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