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

Research output: Contribution to journalArticlepeer-review

1 Citation (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 languageEnglish
Article number11
Pages (from-to)2795-2801
Number of pages7
JournalEmerging Infectious Diseases
Volume27
Issue number11
DOIs
Publication statusPublished - 26 Aug 2021

Fingerprint

Dive into the research topics of 'Seroprevalence of SARS-CoV-2-Specific Antibodies among Quarantined Close Contacts of COVID-19 Patients, Faroe Islands, 2020'. Together they form a unique fingerprint.

Cite this