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Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review

OBJECTIVE: To inform quarantine and contact-tracing policies concerning re-positive cases—cases testing positive among those recovered. MATERIALS AND METHODS: We systematically reviewed and appraised relevant literature from PubMed and Embase for the extent of re-positive cases and their epidemiolog...

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Autores principales: Abrokwa, Seth Kofi, Müller, Sophie Alice, Méndez-Brito, Alba, Hanefeld, Johanna, El Bcheraoui, Charbel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659325/
https://www.ncbi.nlm.nih.gov/pubmed/34882750
http://dx.doi.org/10.1371/journal.pone.0261221
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author Abrokwa, Seth Kofi
Müller, Sophie Alice
Méndez-Brito, Alba
Hanefeld, Johanna
El Bcheraoui, Charbel
author_facet Abrokwa, Seth Kofi
Müller, Sophie Alice
Méndez-Brito, Alba
Hanefeld, Johanna
El Bcheraoui, Charbel
author_sort Abrokwa, Seth Kofi
collection PubMed
description OBJECTIVE: To inform quarantine and contact-tracing policies concerning re-positive cases—cases testing positive among those recovered. MATERIALS AND METHODS: We systematically reviewed and appraised relevant literature from PubMed and Embase for the extent of re-positive cases and their epidemiological characteristics. RESULTS: In 90 case reports/series, a total of 276 re-positive cases were found. Among confirmed reinfections, 50% occurred within 90 days from recovery. Four reports related onward transmission. In thirty-five observational studies, rate of re-positives ranged from zero to 50% with no onward transmissions reported. In eight reviews, pooled recurrence rate ranged from 12% to 17.7%. Probability of re-positive increased with several factors. CONCLUSION: Recurrence of a positive SARS-CoV-2 test is commonly reported within the first weeks following recovery from a first infection.
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spelling pubmed-86593252021-12-10 Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review Abrokwa, Seth Kofi Müller, Sophie Alice Méndez-Brito, Alba Hanefeld, Johanna El Bcheraoui, Charbel PLoS One Research Article OBJECTIVE: To inform quarantine and contact-tracing policies concerning re-positive cases—cases testing positive among those recovered. MATERIALS AND METHODS: We systematically reviewed and appraised relevant literature from PubMed and Embase for the extent of re-positive cases and their epidemiological characteristics. RESULTS: In 90 case reports/series, a total of 276 re-positive cases were found. Among confirmed reinfections, 50% occurred within 90 days from recovery. Four reports related onward transmission. In thirty-five observational studies, rate of re-positives ranged from zero to 50% with no onward transmissions reported. In eight reviews, pooled recurrence rate ranged from 12% to 17.7%. Probability of re-positive increased with several factors. CONCLUSION: Recurrence of a positive SARS-CoV-2 test is commonly reported within the first weeks following recovery from a first infection. Public Library of Science 2021-12-09 /pmc/articles/PMC8659325/ /pubmed/34882750 http://dx.doi.org/10.1371/journal.pone.0261221 Text en © 2021 Abrokwa et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Abrokwa, Seth Kofi
Müller, Sophie Alice
Méndez-Brito, Alba
Hanefeld, Johanna
El Bcheraoui, Charbel
Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title_full Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title_fullStr Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title_full_unstemmed Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title_short Recurrent SARS-CoV-2 infections and their potential risk to public health – a systematic review
title_sort recurrent sars-cov-2 infections and their potential risk to public health – a systematic review
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659325/
https://www.ncbi.nlm.nih.gov/pubmed/34882750
http://dx.doi.org/10.1371/journal.pone.0261221
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