ArticleGut pathogens2022
Comparison of SARS-CoV-2 spike RNA sequences in feces and nasopharynx indicates intestinal replication.
Article in Gut pathogens, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- Development of a Multiplex TaqMan Real-Time RT-PCR Assay for the Rapid Differential Detection of Classic, MLB-Clade and VA-Clade Human Astroviruses.Journal of microbiology and biotechnology · 2025Article
- SARS-CoV-2 Viral Load in Stool and Nasopharyngeal/Oropharyngeal Samples: Implications for Clinical Progression in Severe COVID-19 Patients.International journal of microbiology · 2025Article
- Article
- Infectivity of exhaled SARS-CoV-2 aerosols is sufficient to transmit covid-19 within minutes.Scientific reports · 2023Article
- Selective IgA Deficiency May Be an Underrecognized Risk Factor for Severe COVID-19.The journal of allergy and clinical immunology. In practice · 2023Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundLittle is known of possible selection and replication of SARS-CoV-2 in the intestines and if viral load in feces is associated with severity of disease. Therefore, sequence variations of the spike region in strains collected from feces and nasopharynx (NPH) from the same patients were compared. It was also investigated whether viral load in feces related to severity of COVID-19 in hospitalized patients.
resultsSARS-CoV-2 RNA was found in 88 (79%) fecal samples from 112 patients. The complete spike region could be sequenced in 15 fecal and 14 NPH samples. Fourteen Alpha-variants and one Beta-variant of SARS-CoV-2 were identified. The majority of the viral genetic variants (viral populations) in two fecal samples, but none in NPH, had a reversion of the H69/V70 amino acid deletion normally seen in the Alpha variants. Nine fecal samples contained up to nine minority variants, each which may constitute a separate viral population. Five NPH samples had one genetic variant each, and one NPH sample contained nine minority populations of SARS-CoV-2 spike genes.
conclusionsThe higher genomic diversity of SARS-CoV-2 in feces compared to NPH, and the reversion of the H69/V70 deletion in Alpha variants from feces indicate a selection of viral strains and replication of SARS-CoV-2 in the gastrointestinal tract.
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