Publication: Sero-surveillance for SARS-CoV-2 infection among healthcare providers in four hospitals in Thailand one year after the first community outbreak
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Issued Date
2021-07-01
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19326203
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2-s2.0-85110169960
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Mahidol University
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SCOPUS
Bibliographic Citation
PLoS ONE. Vol.16, No.7 July (2021)
Suggested Citation
Wanitchaya Kittikraisak, Phunlerd Piyaraj, Apichat Vachiraphan, Thanapat Wongrapee, Somsak Punjasamanvong, Taweewun Hunsawong, Chalinthorn Sinthuwattanawibool, Chaniya Leepiyasakulchai, Pornsak Yoocharoen, Eduardo Azziz-Baumgartner, Joshua A. Mott, Suthat Chottanapund Sero-surveillance for SARS-CoV-2 infection among healthcare providers in four hospitals in Thailand one year after the first community outbreak. PLoS ONE. Vol.16, No.7 July (2021). doi:10.1371/journal.pone.0254563 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/79340
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Title
Sero-surveillance for SARS-CoV-2 infection among healthcare providers in four hospitals in Thailand one year after the first community outbreak
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Abstract
Background Thailand was the first country outside China to report SARS-CoV-2 infected cases. Since the detection of the first imported case on January 12th, 2020 to the time this report was written, Thailand experienced two waves of community outbreaks (March-April 2020 and December 2020-March 2021). We examined prevalence of SARS-CoV-2 seropositivity among healthcare providers (HCPs) in four hospitals approximately one year after SARSCoV- 2 first detected in Thailand. By March 2021, these hospitals have treated a total of 709 coronavirus disease 2019 (COVID-19) patients. Methods Blood specimens, collected from COVID-19 unvaccinated HCPs during January-March 2021, were tested for the presence of SARS-CoV-2 immunoglobulin G (IgG) antibodies to nucleocapsid (IgG-nucleocapsid) and spike (IgG-spike) proteins using Euroimmune® enzyme-linked immunosorbent assays. Results Of 600 HCPs enrolled, 1 (0.2%) tested positive for the SARS-CoV-2 IgG-spike antibodies, but not the IgG-nucleocapsid. Conclusion The presence of SARS-CoV-2 IgG antibodies was rare in this sample of HCPs, suggesting that this population remains susceptible to SARS-CoV-2 infection.