ArticleInfectious disease reports2021
Asymptomatic Cases, the Hidden Challenge in Predicting COVID-19 Caseload Increases.
Article in Infectious disease reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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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.
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Who cites it
15 citing papers in PubMed.
- Estimation of undetected asymptomatic infections of COVID-19: a mathematical modeling approach.Scientific reports · 2025Article
- Global COVID-19 Pandemic Outcomes: A Cross-Country Comparison Study of Policy Strategies.Integrative medicine (Encinitas, Calif.) · 2024Review
- Newly arrived migrants did not represent an additional COVID-19 burden for Italy: data from the italian information flow.Globalization and health · 2023Observational
- Highly socially vulnerable communities exhibit disproportionately increased viral loads as measured in community wastewater.Environmental research · 2023Article
- Article
- A low proportion of asymptomatic COVID-19 patients with the Delta variant infection by viral transmission through household contact at the time of confirmation in Ibaraki, Japan.Global health & medicine · 2022Article
- Characterization and Outcomes of SARS-CoV-2 Infection in Overweight and Obese Patients: A Dynamic Comparison of COVID-19 Pandemic Waves.Journal of clinical medicine · 2022Article
- Detection of COVID-19 using multimodal data from a wearable device: results from the first TemPredict Study.Scientific reports · 2022Article
- Laboratory Findings in Different Disease Status of COVID-19 Admitted Patients at Dilla University Referral Hospital Treatment Center, South Ethiopia.Infection and drug resistance · 2022Article
- Prevalence and Drivers of COVID-19 Vaccine Booster Hesitancy Among German University Students and Employees.Frontiers in public health · 2022Article
- Seroprevalence and levels of IgG antibodies after COVID-19 infection or vaccination.Infectious diseases (London, England) · 2022Article
- What We Are Learning from COVID-19 for Respiratory Protection: Contemporary and Emerging Issues.Polymers · 2021Review
- The SIR model towards the data: One year of Covid-19 pandemic in Italy case study and plausible "real" numbers.European physical journal plus · 2021Article
- Superspreading and heterogeneity in transmission of SARS, MERS, and COVID-19: A systematic review.Computational and structural biotechnology journal · 2021Review
- Factors associated with parental COVID-19 vaccine attitudes and intentions among a national sample of United States adults ages 18-45.Journal of pediatric nursingArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
The numbers of novel coronavirus cases continue to grow at an unprecedented rate across the world. Attempts to control the growth of the virus using masks and social-distancing, and, recently, double-masking as well, continue to be difficult to maintain, in part due to the extent of asymptomatic cases. Analyses of large datasets consisting of 219,075 individual cases in Ontario, indicated that asymptomatic and pre-symptomatic cases are substantial in number. Large numbers of cases in children aged 0-9 were asymptomatic or had only one symptom (35.0% and 31.4% of total cases, respectively) and resulted in fever as the most common symptom (30.6% of total cases). COVID-19 cases in children were more likely to be milder symptomatic with cough not seen as frequently as in adults aged over 40, and past research has shown children to be index cases in familial clusters. These findings highlight the importance of targeting asymptomatic and mild infections in the continuing effort to control the spread of COVID-19. The Pearson correlation coefficient between test positivity rates and asymptomatic rates of -0.729 indicates that estimates of the asymptomatic rates should be obtained when the test positivity rates are lowest as the best approach.
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Registered trials
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