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Validation and testing of a method for detection of SARS-CoV-2 RNA in healthy human stool — Europe PMC PPR:PPR237599

Source: Europe PMC
Original: https://europepmc.org/article/PPR/PPR237599
DOI: 10.1101/2020.11.09.20228601
License (as archived): CC0-1.0
Archived: 2026-11-06T22:50:08.875Z
SHA-256 of the archived text: 08786d9265f0a02960367a969394ffcea662632f7bd112a59e548497613339c1
Stable URL of this page: https://metraipolis.com/documento/dc_d86fced85f35

How to cite

Validation and testing of a method for detection of SARS-CoV-2 RNA in healthy human stool — Europe PMC PPR:PPR237599 — Europe PMC, https://europepmc.org/article/PPR/PPR237599 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_d86fced85f35 (Metraipolis archive dc_d86fced85f35, sha256 08786d9265f0a02960367a969394ffcea662632f7bd112a59e548497613339c1)

BibTeX

@misc{dcd86fced85f35,
  title = {Validation and testing of a method for detection of SARS-CoV-2 RNA in healthy human stool — Europe PMC PPR:PPR237599},
  howpublished = {Europe PMC},
  url = {https://europepmc.org/article/PPR/PPR237599},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_d86fced85f35; sha256 08786d9265f0a02960367a969394ffcea662632f7bd112a59e548497613339c1},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: Europe PMC, https://europepmc.org/article/PPR/PPR237599. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Summary (Abstract): Background: Fecal shedding of SARS-CoV-2 has raised concerns about transmission through fecal microbiota transplantation (FMT) procedures. While many tests have been authorized for diagnosis of COVID-19 using respiratory samples, no fully validated stool tests for detection of SARS-CoV-2 are currently available. We sought to adapt and validate an available test specifically for detection of SARS-CoV-2 in human stool. Methods: Stool samples were spiked with inactivated SAR-CoV-2 virus for development and validation of the assay. A modified version of the CDC rRT-PCR SARS-CoV-2 test was used for detection of virus. Analytical sensitivity, assay reproducibility, and sample stability under a variety of storage conditions were assessed. We also performed the assay on stool samples collected from known COVID positive individuals. Findings: The lower limit of detection (LoD) of the assay was found to be 3000 viral RNA copies per gram of original stool sample, with 100% detection across 20 replicates assessed at this concentration. Samples were relatively stable in all buffers tested at both 4°C and ambient temperature, with the exception of storage in STAR buffer at ambient temperature. Assay sensitivity was slightly diminished in low-copy-number samples after a single freeze-thaw cycle at −80°C. Thirty contrived SARS-CoV-2 samples were tested by a second laboratory and were correctly identified as positive or negative in at least one of two rounds of testing. Additionally, we detected SARS-CoV-2 RNA in the stool of known COVID-19 positive individuals using this method. Interpretation: This is a sensitive, reproducible, and validated assay for detection of SARS-CoV-2 RNA in human stool with potential uses in FMT donor screening, sewage monitoring, and further research into the impact of fecal shedding on the epidemiology of this pandemic. Funding: National Institute for Allergy and Infectious Diseases, NIH. Center for Biologics Evaluation and Research, FDA. Research in Context: Evidence before this study: Since the onset of the COVID-19 pandemic, multiple studies have documented shedding of SARS-CoV-2 RNA in feces and considered the potential for fecal-oral transmission of this virus. This potential risk led to the U . S. Food and Drug Administration issuing a safety alert that contained the recommendation that no stool donated after December 1, 2019 be used for manufacture of Fecal Microbiota for Transplantation (FMT) products in the United States until such a time as sufficient screening procedures could be put in place to mitigate this risk . Added value of this study: Here, we report the development and validation of an assay specifically meant for the detection of SARS-CoV-2 RNA in the stool of healthy individuals. While studies have reported detection of viral RNA in stool previously, this is the first publication of a validated assay designed for this purpose . Implications of all the available evidence: The work presented here provides a validated SARS-CoV-2 stool assay with potential application to FMT donor screening protocols, sewage monitoring protocols, as well as research studies assessing the role of stool shedding and transmission on the epidemiology of COVID-19 .

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (retro-catalogo: tutto il sottoinsieme open access di Europe PMC con licenza libera).
Pubblicazione: medRxiv, 2020 (prima pubblicazione 2020-11-12).
Identificativi: DOI 10.1101/2020.11.09.20228601.
Pagina: https://europepmc.org/article/PPR/PPR237599 — https://doi.org/10.1101/2020.11.09.20228601. Autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza dell'articolo dichiarata da Europe PMC: CC0 (la versione è indicata dall'editore sulla pagina). Abstract riportato senza modifiche al contenuto, con attribuzione; deposito marcato CC0.
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