Recurrent SARS-CoV-2 infections and their potential risk to public health - a systematic review.
<h4<Objective</h4<To inform quarantine and contact-tracing policies concerning re-positive cases-cases testing positive among those recovered.<h4<Materials and methods</h4<We systematically reviewed and appraised relevant literature from PubMed and Embase for the extent of re-positive cases and their epidemiological characteristics.<h4<Results</h4<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.<h4<Conclusion</h4<Recurrence of a positive SARS-CoV-2 test is commonly reported within the first weeks following recovery from a first infection..
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2021 |
|---|---|
| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
PLoS ONE - 16(2021), 12, p e0261221 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Seth Kofi Abrokwa [VerfasserIn] |
|---|
| Links: |
doi.org [kostenfrei] |
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| Themen: |
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| doi: |
10.1371/journal.pone.0261221 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ074095048 |
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| 520 | |a <h4<Objective</h4<To inform quarantine and contact-tracing policies concerning re-positive cases-cases testing positive among those recovered.<h4<Materials and methods</h4<We systematically reviewed and appraised relevant literature from PubMed and Embase for the extent of re-positive cases and their epidemiological characteristics.<h4<Results</h4<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.<h4<Conclusion</h4<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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