Ye, Xiao-Lei, Zhang, Ying, Dai, Xin-Hua et al. · BMC public health · 2024 · DOI
This study surveyed 753 Chinese residents who had been infected with the Omicron variant of COVID-19 to understand what symptoms they experienced during recovery. Researchers found that nearly half reported persistent breathlessness and cognitive problems (trouble thinking clearly), while about one-third experienced fatigue that didn't improve with rest, anxiety, or pain. Most people recovered within four months, and less than 10% reported serious difficulties with daily activities.
This study is significant because it provides early epidemiological data on persistent post-COVID symptoms in a large population using a standardized assessment tool, and notably documents post-exertional malaise in 30% of cases—a symptom particularly relevant to ME/CFS. The identification of protective factors (exercise, diet, recovery timeline) and risk factors offers clues for understanding disease trajectories and potential intervention targets. Understanding how Omicron-infected individuals experience symptoms like PEM and cognitive dysfunction helps contextualize the overlap between post-COVID sequelae and ME/CFS.
This study does not establish causation or prove that the identified protective factors directly cause better outcomes—only that they are statistically associated. The cross-sectional design means we cannot determine whether daily exercise, for example, helped recovery or whether healthier individuals were simply more likely to exercise. The study also does not validate that post-COVID persistent symptoms are identical to ME/CFS, only that some symptom overlap exists.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Ye, Xiao-Lei, Zhang, Ying, Dai, Xin-Hua, Gan, Jun, Liu, Yue, Liao, Ai-Miao, et al. (2024). Post‑recovery symptoms of infected cases after Omicron pandemic: a quick online cross-sectional study based on C19-YRSm in China.. BMC public health. https://doi.org/10.1186/s12889-024-20282-6
BibTeX
@article{mecfsatlas-ye-2024-post-recovery,
author = {Ye, Xiao-Lei and Zhang, Ying and Dai, Xin-Hua and Gan, Jun and Liu, Yue and Liao, Ai-Miao and Zhao, Li-Zhi and Xie, Chao and Zuo, Jing and Wang, Ping and Ai, Le-Le and Zhang, Yi-Fan and Huang, Yan and Zhang, Juan and Shi, Qing-Ming and Zheng, Jun-Feng and Tan, Wei-Long and Hu, Xiao-Bing},
title = {Post‑recovery symptoms of infected cases after Omicron pandemic: a quick online cross-sectional study based on C19-YRSm in China.},
journal = {BMC public health},
year = {2024},
doi = {10.1186/s12889-024-20282-6},
note = {PubMed: 39407171},
url = {https://www.mecfsatlas.com/evidence/ye-2024-post-recovery},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/ye-2024-post-recovery
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