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Cited by 473

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Defining Post-COVID Symptoms (Post-Acute COVID, Long COVID, Persistent Post-COVID): An Integrative Classification

Open access
Fernández-de-las-Peñas, César, Palacios-Ceña, Domingo, Gómez-Mayordomo, Víctor, Cuadrado, María L., Florencio, Lidiane L.·2021·International Journal of Environmental Research and Public Health

Abstract

The pandemic of the coronavirus disease 2019 (COVID-19) has provoked a second pandemic, the “long-haulers”, i.e., individuals presenting with post-COVID symptoms. We propose that to determine the presence of post-COVID symptoms, symptoms should appear after the diagnosis of SARS-CoV-2 infection; however, this situation has some problems due to the fact that not all people infected by SARS-CoV-2 receive such diagnosis. Based on relapsing/remitting nature of post-COVID symptoms, the following integrative classification is proposed: potentially infection related-symptoms (up to 4–5 weeks), acute post-COVID symptoms (from week 5 to week 12), long post-COVID symptoms (from week 12 to week 24), and persistent post-COVID symptoms (lasting more than 24 weeks). The most important topic is to establish the time reference points. The classification also integrates predisposing intrinsic and extrinsic factors and hospitalization data which could promote post-COVID symptoms. The plethora of symptoms affecting multiple systems exhibited by “long-haulers” suggests the presence of different underlying mechanisms.

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Crossref · 10.3390/ijerph18052621

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Metadata

Authors
Fernández-de-las-Peñas, C., Palacios-Ceña, D., Gómez-Mayordomo, V., Cuadrado, M. L., & Florencio, L. L.
Venue
International Journal of Environmental Research and Public Health
Publisher
MDPI AG
Published
2021-03-05
Volume
18
Issue
5
Pages
2621
ISSN
1660-4601 (ISSN-L)
OpenAlex
W3134181578
Cited by
473
References
36
FWCI
40.29
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Defining Post-COVID Symptoms (Post-Acute COVID, Long COVID, Persistent Post-COVID): An Integrative Classification. https://app.cochat.ai/papers/10.3390/ijerph18052621
The paper
Fernández-de-las-Peñas, C., Palacios-Ceña, D., Gómez-Mayordomo, V., Cuadrado, M. L., & Florencio, L. L. (2021). Defining Post-COVID Symptoms (Post-Acute COVID, Long COVID, Persistent Post-COVID): An Integrative Classification. International Journal of Environmental Research and Public Health. https://doi.org/10.3390/ijerph18052621

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.