Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020

Maria Skaalum Petersen; Marnar Fríðheim Kristiansen; Halla Weihe Reinert; Jógvan Páll Fjallsbak; Debes Hammershaimb Christiansen; Shahin Gaini; Bjarni á Steig; Lars Fodgaard Møller; Marin Strøm; Pál Magni Weihe

doi:10.3201/eid2711.204948

Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020

Maria Skaalum Petersen, Marnar Fríðheim Kristiansen, Halla Weihe Reinert, Jógvan Páll Fjallsbak, Debes Hammershaimb Christiansen, Shahin Gaini, Bjarni á Steig, Lars Fodgaard Møller, Marin Strøm, Pál Magni Weihe

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3 Citations (Scopus)

Abstract

Close contacts of coronavirus disease (COVID-19) patients are at high risk for severe acute respiratory syndrome 2 (SARS-CoV-2) infection. We assessed the seroprevalence of SARS-CoV-2-specific antibodies among quarantined close contacts of COVID-19 patients in the Faroe Islands. We invited quarantined close contacts of COVID-19 index patients identified during March 3-April 22, 2020, to participate in this study; 584 (81%) contacts consented and underwent serologic testing. Among the 584 participants, 32 (5.5%) were seropositive for total antibody against SARS-CoV-2. Household and young or elderly contacts had higher risk for seropositivity than other contacts. We found a secondary attack rate of 19.2%. Seroprevalence among close contacts was almost 10-fold higher than among the general population of the Faroe Islands. Regularly testing household close contacts of COVID-19 patients might help track the transmission of SARS-CoV-2.

Original language	English
Article number	11
Pages (from-to)	2795-2801
Number of pages	7
Journal	Emerging Infectious Diseases
Volume	27
Issue number	11
DOIs	https://doi.org/10.3201/eid2711.204948
Publication status	Published - 26 Aug 2021

Keywords

covid-19
SARS-CoV-2– Specifi c Antibodies
COVID-19 Patients
Faroe Islands

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10.3201/eid2711.204948

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Petersen, M. S., Kristiansen, M. F., Reinert, H. W., Fjallsbak, J. P., Christiansen, D. H., Gaini, S., Steig, B. Á., Møller, L. F., Strøm, M., & Weihe, P. M. (2021). Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020. Emerging Infectious Diseases, 27(11), 2795-2801. Article 11. https://doi.org/10.3201/eid2711.204948

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abstract = "Close contacts of coronavirus disease (COVID-19) patients are at high risk for severe acute respiratory syndrome 2 (SARS-CoV-2) infection. We assessed the seroprevalence of SARS-CoV-2-specific antibodies among quarantined close contacts of COVID-19 patients in the Faroe Islands. We invited quarantined close contacts of COVID-19 index patients identified during March 3-April 22, 2020, to participate in this study; 584 (81%) contacts consented and underwent serologic testing. Among the 584 participants, 32 (5.5%) were seropositive for total antibody against SARS-CoV-2. Household and young or elderly contacts had higher risk for seropositivity than other contacts. We found a secondary attack rate of 19.2%. Seroprevalence among close contacts was almost 10-fold higher than among the general population of the Faroe Islands. Regularly testing household close contacts of COVID-19 patients might help track the transmission of SARS-CoV-2.",

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Petersen, MS , Kristiansen, MF , Reinert, HW, Fjallsbak, JP, Christiansen, DH, Gaini, S, Steig, BÁ, Møller, LF, Strøm, M & Weihe, PM 2021, 'Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020', Emerging Infectious Diseases, vol. 27, no. 11, 11, pp. 2795-2801. https://doi.org/10.3201/eid2711.204948

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AU - Reinert, Halla Weihe

AU - Fjallsbak, Jógvan Páll

AU - Christiansen, Debes Hammershaimb

AU - Gaini, Shahin

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AU - Strøm, Marin

AU - Weihe, Pál Magni

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AB - Close contacts of coronavirus disease (COVID-19) patients are at high risk for severe acute respiratory syndrome 2 (SARS-CoV-2) infection. We assessed the seroprevalence of SARS-CoV-2-specific antibodies among quarantined close contacts of COVID-19 patients in the Faroe Islands. We invited quarantined close contacts of COVID-19 index patients identified during March 3-April 22, 2020, to participate in this study; 584 (81%) contacts consented and underwent serologic testing. Among the 584 participants, 32 (5.5%) were seropositive for total antibody against SARS-CoV-2. Household and young or elderly contacts had higher risk for seropositivity than other contacts. We found a secondary attack rate of 19.2%. Seroprevalence among close contacts was almost 10-fold higher than among the general population of the Faroe Islands. Regularly testing household close contacts of COVID-19 patients might help track the transmission of SARS-CoV-2.

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Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020

Abstract

Keywords

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Tracing the true prevalence of COVID-19 in the Faroe Islands: COVID-19 dark numbers in the Faroe Islands / Hvussu nógv fólk í Føroyum hava andevni í blóðinum móti koronavirusi?

Cite this

Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Tracing the true prevalence of COVID-19 in the Faroe Islands: COVID-19 dark numbers in the Faroe Islands / Hvussu nógv fólk í Føroyum hava andevni í blóðinum móti koronavirusi?

Cite this