ArticleJournal of medical virology2023
Clinical characteristics of 1139 mild cases of the SARS-CoV-2 Omicron variant infected patients in Shanghai.
Article in Journal of medical virology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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22 citing papers in PubMed, 36 citations in OpenAlex.
- Observational
- Analysis of interception problems in donning and doffing personal protective equipment in a large cabin hospital during the COVID-19 pandemic: a real world study.Scientific reports · 2026Article
- Article
- A public health perspective of SARS-CoV-2 evolution and surveillance strategies in Germany from 2020 to 2023.Communications medicine · 2025Review
- Genomic and clinical epidemiology of SARS-CoV-2 in coastal Kenya: insights into variant circulation, reinfection, and multiple lineage importations during a post-pandemic wave.BMC global and public health · 2025Article
- COVID-19 Clinical Predictors in Patients Treated via a Telemedicine Platform in 2022.Tropical medicine and infectious disease · 2025Article
- BIC/FTC/TAF Benefits People Living With HIV After Omicron Breakthrough Infection in Shortening Duration of Symptoms, Enhancing Specific Immune Response and Increasing Total CD4 Cells.Journal of medical virology · 2024Article
- Post‑recovery symptoms of infected cases after Omicron pandemic: a quick online cross-sectional study based on C19-YRSm in China.BMC public health · 2024Article
- Clinical characteristics of COVID-19 clusters in three schools in Beijing, China: A retrospective study.Heliyon · 2024Article
- The role of hematological parameters in asymptomatic and non-severe cases of Omicron variant infection.Virology journal · 2024Article
- Update on Omicron variant and its threat to vulnerable populations.Public health in practice (Oxford, England) · 2024Review
- Profiles of Cough and Associated Risk Factors in Nonhospitalized Individuals With SARS-CoV-2 Omicron Variant Infection: Cross-Sectional Online Survey in China.JMIR public health and surveillance · 2024Article
- Comparative analysis of COVID-19 and influenza prevalence among Egyptian pilgrims returning from Hajj and Umrah in 2022: epidemiology, clinical characteristics, and genomic sequencing.Archives of public health = Archives belges de sante publique · 2024Article
- Co-evolution of SARS-CoV-2 variants and host immune response trajectories underlie COVID-19 pandemic to epidemic transition.iScience · 2023Article
- Myocardial injury and related mortality in hospitalized patients with COVID-19 during the Omicron pandemic: new perspectives and insights.Virologica Sinica · 2023Article
- Assessment of vaccinations and breakthrough infections after adjustment of the dynamic zero-COVID-19 strategy in China: an online survey.Emerging microbes & infections · 2023Article
- VEGFR and DPP-IV as Markers of Severe COVID-19 and Predictors of ICU Admission.International journal of molecular sciences · 2023Article
- Viral rebound and safety of nirmatrelvir/ritonavir for lung-transplant recipients infected with SARS-CoV-2.Biosafety and health · 2023Article
- Clinical characteristics and prognostic nomograms of 12555 non-severe COVID-19 cases with Omicron infection in Shanghai.BMC infectious diseases · 2023Article
- Plasma metabolomic characterization of SARS-CoV-2 Omicron infection.Cell death & disease · 2023Article
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11 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
In March 2022, the Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) surged during the Coronavirus Disease 2019 (COVID-19) pandemic in Shanghai, but over 90% of patients were mild. This study included 1139 COVID-19 patients mildly infected with the Omicron variant of SARS-CoV-2 in Shanghai from May 1 to 10, 2022, aiming to clarify the demographic characteristics and clinical symptoms of patients with mild Omicron infection. The clinical phenotypes of Omicron infection were identified by model-based cluster analysis to explore the features of different clusters. The median age of the patients was 41.0 years [IQR: 31.0-52.0 years] and 73.0% were male. The top three clinical manifestations are cough (57.5%), expectoration (48.3%), and nasal congestion and runny nose (43.4%). The prevalence of nasal congestion and runny nose varied significantly across the doses of vaccinations, with 23.1% in the unvaccinated population and 30%, 45.9%, and 44.3% in the 1-dose, 2-dose and 3-dose vaccinated populations, respectively. In addition, there were significant differences for fever (23.1%, 26.0%, 28.6%, 18.4%), head and body heaviness (15.4%, 14.0%, 26.7%, 22.4%), and loss of appetite (25.6%, 30.0%, 33.6%, 27.7%). The unvaccinated population had a lower incidence of symptoms than the vaccinated population. Cluster analysis revealed that all four clusters had multisystemic symptoms and were dominated by both general and respiratory symptoms. The more severe the degree of the symptoms was, the higher the prevalence of multisystemic symptoms will be. The Omicron variant produced a lower incidence of symptoms in mildly infected patients than previous SARS-CoV-2 variants, but the clinical symptoms caused by the Omicron variant are more complex, so that it needs to be differentiated from influenza.
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