ArticleBMJ open2025
Patterns and persistence of SARS-CoV-2 seropositivity among college students at Indiana University-Bloomington.
Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04620798 (Longitudinal COVID-19 Antibody Testing in Indiana University Undergraduate Students), which is not on this map. Not yet cited in PubMed.
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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.
The trial behind it
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.
Longitudinal COVID-19 Antibody Testing in Indiana University Undergraduate Students
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0 citing papers in PubMed.
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThis study examined the patterns and persistence of SARS-CoV-2 seropositivity among college students from March to November 2020. Using data from a sample of students at Indiana University, we assessed (1) the duration and seropositivity following reverse transcription-PCR (RT-PCR)-confirmed SARS-CoV-2 infection and (2) persistence of seropositivity over 10 weeks between two laboratory antibody test visits. SETTING, DESIGN AND
participantsThe longitudinal study was conducted at Indiana University from September to November 2020, with two laboratory antibody tests, and included self-reported RT-PCR results before the observational period from as early as 20 March 2020. This 6-9 month period contributes to our understanding of seropositivity dynamics. The study included 172 college students who had previously tested positive for SARS-CoV-2 and measured their seropositivity.
resultsOur results showed a notable decline (66.7%) in antibody positivity over the observed period. Additionally, 12 weeks postinfection, most students with a SARS-CoV-2 infection history (75%) were no longer seropositive.
conclusionsThese findings reveal a nuanced picture of antibody dynamics, highlighting the complex interplay of factors among college students. The study underscores the need for continued research on antibody levels among young adults to better understand the drivers of variations in antibody persistence. TRIAL REGISTRATION NUMBER: #NCT04620798.
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