Seroprevalence of sars-cov-2- specifi c antibodies among quarantined close contacts of covid-19 patients, faroe islands, 2020
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-specifi c antibodies among quarantined close contacts of COVID-19 patients in the Faroe Islands. We invited quaranti...
Published in: | Emerging Infectious Diseases |
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Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
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Subjects: | |
Online Access: | https://portal.findresearcher.sdu.dk/da/publications/fd977b93-476e-424f-b2f1-85579813808e https://doi.org/10.3201/eid2711.204948 https://findresearcher.sdu.dk/ws/files/194771805/20_4948.pdf |
Summary: | 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-specifi c antibodies among quarantined close contacts of COVID-19 patients in the Faroe Islands. We invited quarantined close contacts of COVID-19 index patients identifi ed 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 SARSCoV- 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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