ArticleInternational journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases2020
Asymptomatic infection by SARS-CoV-2 in healthcare workers: A study in a large teaching hospital in Wuhan, China.
Article in International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 5 of them syntheses that pooled it.
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Who cites it
32 citing papers in PubMed, 5 syntheses or guidelines pooled it, 50 citations in OpenAlex.
- The role of routine SARS-CoV-2 screening of healthcare-workers in acute care hospitals in 2020: a systematic review and meta-analysis.BMC infectious diseases · 2022Pooled it
- COVID-19 Clinical Presentation Among HIV-Infected Persons in China: A Systematic Review.Current HIV/AIDS reports · 2022Pooled it
- Global Percentage of Asymptomatic SARS-CoV-2 Infections Among the Tested Population and Individuals With Confirmed COVID-19 Diagnosis: A Systematic Review and Meta-analysis.JAMA network open · 2021Pooled it
- Asymptomatic SARS-CoV-2 infection: A systematic review and meta-analysis.Proceedings of the National Academy of Sciences of the United States of America · 2021Pooled it
- Magnitude of asymptomatic COVID-19 cases throughout the course of infection: A systematic review and meta-analysis.PloS one · 2021Pooled it
- Trial
- Article
- SARS-CoV-2 infections in patients, health care workers and hospital outbreaks during the first 3 waves of the pandemic: a retrospective analysis in a secondary care hospital network in Germany.BMC infectious diseases · 2024Article
- Mitigating healthcare worker risk during the COVID-19 pandemic - experience from a large tertiary maternity centre in the United Arab Emirates.Journal of medicine and life · 2023Article
- Clinical and virological features of asymptomatic and mild symptomatic patients with SARS-CoV-2 Omicron infection at Shanghai Fangcang shelter hospital.Immunity, inflammation and disease · 2023Observational
- Identification of Asymptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infections Among Healthcare Workers at Sultan Qaboos University Hospital, Oman.Sultan Qaboos University medical journal · 2023Article
- Prevalence and factors associated with COVID-19 among healthcare workers at a university hospital in Thailand.Medicine · 2022Article
- Epidemiological and clinical characteristics of COVID-19 mortality among healthcare workers in Saudi Arabia: A nationwide study.Journal of infection and public health · 2022Article
- Prospective surveillance study in a 1,400-bed university hospital: COVID-19 exposure at home was the main risk factor for SARS-CoV-2 point seroprevalence among hospital staff.Transboundary and emerging diseases · 2022Article
- Prevalence of current and past COVID-19 in Ohio adults.Annals of epidemiology · 2022Article
- Article
- Temporal and Gene Reassortment Analysis of Influenza C Virus Outbreaks in Hong Kong, SAR, China.Journal of virology · 2022Article
- Association between SARS-CoV-2 exposure and antibody status among healthcare workers in two London hospitals: a cross-sectional study.Infection prevention in practice · 2021Article
- ScRNA-seq revealed the kinetic of nasopharyngeal immune responses in asymptomatic COVID-19 carriers.Cell discovery · 2021Article
- Estimating seroprevalence of SARS-CoV-2 in Ohio: A Bayesian multilevel poststratification approach with multiple diagnostic tests.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
Corrections and comments
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Authors and funding
12 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate the proportion and characteristics of asymptomatic infection among healthcare workers (HCWs).
methodsThis study retrospectively investigated 1407 HCWs who were screened for COVID-19 by chest computed tomography (CT) scans and nasopharyngeal swabs for SARS-CoV-2 nucleic acid. Demographics, CT features, nasopharyngeal swabs, baseline symptoms, and laboratory data were collected.
resultsOf 1407 HCWs, 235 had symptoms and 1172 were asymptomatic close contacts, of which, 107 were symptomatic cases and 84 were close contacts who had abnormal CT findings. Of 152 symptomatic individuals and 908 close contacts tested for SARS-CoV-2 nucleic acid, 122 symptomatic cases and 38 close contacts had positive reverse-transcriptase real-time polymerase chain (RT-PCR) test results. The rate of confirmed asymptomatic infections was 4.2% (38/908). Both symptomatic and asymptomatic infected cases had high titrations of specific IgG or had ≥four-fold increase in IgG during convalescence compared with the acute phase. Combining the RT-PCR tests and serological findings, the rate of asymptomatic infections was 9.7% (88/908). In terms of the duration of viral shedding, there was no significant difference between symptomatic mild/moderate participants and asymptomatic infections.
conclusionsThe findings demonstrated that a high rate of asymptomatic SARS-CoV-2 carriers existed among healthcare worker close contacts during the outbreak of COVID-19.
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