SynthesisBMC infectious diseases2023
Global prevalence of asymptomatic norovirus infection in outbreaks: a systematic review and meta-analysis.
Synthesis in BMC infectious diseases, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed.
- A Wastewater-based Modeling Framework for Inferring Norovirus Transmission Dynamics.Environmental science & technology · 2026Article
- The Largest Outbreak of Acute Gastroenteritis of Mixed Norovirus Genogroups in the Coast of São Paulo State, Brazil.Viruses · 2026Article
- Instrument-Free, Low-Cost and Dual-System Detection for Norovirus Based on Self-Assembling DNA Circuitry.ACS omega · 2026Article
- Epidemiology of Norovirus Outbreaks in Kindergartens, Primary Schools, and Junior High Schools in Xi'an, China, From October 2020 to February 2023.Medical science monitor : international medical journal of experimental and clinical research · 2025Article
- Asymptomatic Shedding of Enteric Viruses in Young Children: Insights From a Year-Long Prospective Surveillance Study.Journal of medical virology · 2025Article
- Prevalence and genetic characterization of diarrhea viruses among cattle in Guangdong, China.BMC veterinary research · 2025Article
- Targeting norovirus RdRp: A computational study on the inhibitory potential of ursolic acid and apigenin-7-O-glucoside.Journal of Taibah University Medical Sciences · 2025Article
- Multidisciplinary management of a norovirus outbreak in Tuscany, Italy.Italian journal of food safety · 2025Article
- Molecular epidemiological surveillance of monkeypox virus in Indonesia from 2023 to 2024.Epidemiology and infection · 2025Article
- An Epidemiologic Investigation for an Outbreak of Norovirus Infection in a Daycare Center in Gyeonggi-Do, Republic of Korea, 2023.Children (Basel, Switzerland) · 2025Article
- Knowledge, attitude, and practice towards food safety amongst school children, food handlers and consumers: protocol for a pre-post longitudinal study in North East India.Frontiers in public health · 2025Article
- Prevalence and genotype distribution of human norovirus infections in Ghana: A systematic review and meta-analysis.Environmental health insights · 2025Review
- Impact of Nanoparticle-Based TiOFoods (Basel, Switzerland) · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundAlthough many studies on asymptomatic norovirus infection in outbreaks have been conducted globally, structured data (important for emergency management of outbreaks) on the prevalence of this epidemic are still not available. This study assessed the global prevalence of asymptomatic norovirus infection in outbreaks.
methodsWe identified publications on asymptomatic infections from norovirus outbreaks by searching the PubMed, Embase, Cochrane Library, Medline, and Web of Science databases and screening references from the articles reviewed. Prevalence of asymptomatic norovirus infection in outbreaks was employed as the primary summary data. The random-effects model of the meta-analysis was fitted to generate estimates of the prevalence in the overall and subgroup populations.
resultsIn total, 44 articles with a sample size of 8,115 asymptomatic individuals were included. The estimated pooled prevalence of asymptomatic norovirus infection in outbreaks was 21.8% (95%CI, 17.4-27.3). The asymptomatic prevalence of norovirus GII (20.1%) was similar to that of GI (19.8%); however, the proportion prevalence of asymptomatic individuals involved in the former (33.36%) was significantly higher than that of in the latter (0.92%) and the former (93.18%) was reported much more frequently than the latter (15.91%) in the included articles. These studies had significant heterogeneity (I
conclusionsThe overall pooled asymptomatic prevalence of norovirus in outbreaks was high, with genome II dominating. Asymptomatic individuals may play an important role in norovirus outbreaks. This knowledge could help in developing control strategies and public health policies for norovirus outbreaks.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.