Volume 31, Issue 201 (10-2021)
J Mazandaran Univ Med Sci 2021, 31(201): 83-92 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Moradi G, Mohamadi-Bolbanabad A, Najafi F, Karami M, Mohammadi A, Ahmadi S, et al . Seroepidemiology of COVID-19 in High-Risk Occupational Groups in West of Iran, November 2020. J Mazandaran Univ Med Sci 2021; 31 (201) :83-92
URL: http://jmums.mazums.ac.ir/article-1-16926-en.html
URL: http://jmums.mazums.ac.ir/article-1-16926-en.html
Ghobad Moradi 
, Amjad Mohamadi-Bolbanabad , Farid Najafi , Manoochehr Karami , Asadollah Mohammadi , Sanaz Ahmadi , Rashid Haidari Moghadam , Abbas Aghaei , Azad Shokri , Arshad Veysi
, Amjad Mohamadi-Bolbanabad , Farid Najafi , Manoochehr Karami , Asadollah Mohammadi , Sanaz Ahmadi , Rashid Haidari Moghadam , Abbas Aghaei , Azad Shokri , Arshad Veysi
Abstract: (1245 Views)
Background and purpose: The actual prevalence of Coronavirus Disease 2019 (COVID-19) can only be estimated by population-based serological examinations and individuals without clinical symptoms may not be identified or reported. In this sero-epidemiological study we aimed at exploring the serum prevalence of COVID-19 in highly exposed occupational groups in western Iran.
Materials and methods: A total of 1106 people with jobs with a high potential for exposure to COVID-19 (excluding doctors) were selected in Sanandaj, Kermanshah, and Hamedan. Demographic information of all participants were recorded and venous blood samples (3 ml) were taken. IgG levels were measured to determine the serum prevalence of immunoglobulin using EUROIMMUN kit.
Results: Until 15 November 2020, IgG antibody was detected positive in 317 people (28.7%). In Sanandaj, Hamedan, and Kermanshah there were 132 (32%), 88 (26%), and 99 (27.3%) people with IgG-positive antibodies, respectively. There were no significant differences in rates of positive COVID-19 IgG antibody between the cities (P= 0.158). Among individuals with IgG antibody positive (n=317), 35.4% were asymptomatic and only 3.2% were admitted to hospital because of COVID-19.
Conclusion: High prevalence of COVID-19 antibodies in people with working activities of high potential for exposure to known or suspected sources of SARS-CoV-2 and a high number of asymptomatic individuals in this group showed that appropriate personal equipment and adhering to strict rules play a critical role in limiting the disease transmission.
Materials and methods: A total of 1106 people with jobs with a high potential for exposure to COVID-19 (excluding doctors) were selected in Sanandaj, Kermanshah, and Hamedan. Demographic information of all participants were recorded and venous blood samples (3 ml) were taken. IgG levels were measured to determine the serum prevalence of immunoglobulin using EUROIMMUN kit.
Results: Until 15 November 2020, IgG antibody was detected positive in 317 people (28.7%). In Sanandaj, Hamedan, and Kermanshah there were 132 (32%), 88 (26%), and 99 (27.3%) people with IgG-positive antibodies, respectively. There were no significant differences in rates of positive COVID-19 IgG antibody between the cities (P= 0.158). Among individuals with IgG antibody positive (n=317), 35.4% were asymptomatic and only 3.2% were admitted to hospital because of COVID-19.
Conclusion: High prevalence of COVID-19 antibodies in people with working activities of high potential for exposure to known or suspected sources of SARS-CoV-2 and a high number of asymptomatic individuals in this group showed that appropriate personal equipment and adhering to strict rules play a critical role in limiting the disease transmission.
Type of Study: Research(Original) |
Subject:
Epidemiology
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
Articles Copyright © The Author(s). Owned by Mazandaran University of Medical Sciences.
Contact Us
Address: Journal Office, Building No. 2, Mazandaran University of Medical Sciences, Moallem Square, Sari.Tel: +98 (011)34484874 Postal code: 48175-866 E-Mail: jmums@mazums.ac.ir Telefax: +98 (011)33262679
