SynthesisInfluenza and other respiratory viruses2021
The impact of the 2009 influenza pandemic on the seasonality of human respiratory syncytial virus: A systematic analysis.
Synthesis in Influenza and other respiratory viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.
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
37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.
- Understanding the local-level variations in seasonality of human respiratory syncytial virus infection: a systematic analysis.BMC medicine · 2025Pooled it
- The impact of the 2009 influenza pandemic on the seasonality of human respiratory syncytial virus: A systematic analysis.Influenza and other respiratory viruses · 2021Pooled it
- Delayed Seasonality but Consistent Age Burden: RSV Epidemiology Pre-, During, and Post-COVID-19 Pandemic on the Kenyan Coast (2008-2026).Open forum infectious diseases · 2026Article
- Article
- Respiratory viral coinfections: interactions, mechanisms and clinical implications.Nature reviews. Microbiology · 2025Review
- Seasonal Pattern and Age-Specific Detection of Eight Respiratory Viruses Causing Acute Respiratory Infection in 2024, Bangkok, Thailand.Tropical medicine and infectious disease · 2025Article
- Impact of COVID-19 control measures on influenza positivity among patients with acute respiratory infections, 2018-2023: an interrupted time series analysis.BMC infectious diseases · 2025Article
- Seasonal epidemiological and clinical characteristics of pediatric patients with respiratory syncytial virus infection by age during COVID-19: a cross-sectional study.Translational pediatrics · 2025Article
- Expert consensus on the burden of respiratory syncytial virus disease and the utility of nirsevimab for disease prevention and protection of infants.World journal of pediatrics : WJP · 2025Review
- Epidemiology of respiratory infections during the different levels of non-pharmaceutical interventions.BMC pediatrics · 2025Article
- Assessing the Impact of Non-Pharmaceutical Interventions During the COVID-19 Pandemic on RSV Seasonality in Europe.Influenza and other respiratory viruses · 2025Article
- Exploring the epidemiological burden of RSV pre- and post-COVID-19 pandemic: A Jordanian tertiary hospital experience.The Journal of international medical research · 2024Article
- Characterizing the interactions between influenza and respiratory syncytial viruses and their implications for epidemic control.Nature communications · 2024Article
- RSV severity in New Zealand 2021 and 2022: applying the WHO severity assessment framework.The Lancet regional health. Western Pacific · 2024Article
- Article
- Characterising the changes in RSV epidemiology in Beijing, China during 2015-2023: results from a prospective, multi-centre, hospital-based surveillance and serology study.The Lancet regional health. Western Pacific · 2024Article
- Seasonality of respiratory syncytial virus infection in children hospitalized with acute lower respiratory tract infections in Hunan, China, 2013-2022.Virology journal · 2024Article
- Impact of SARS-CoV-2 Pandemic and Lockdown on the HRSV Circulation: Experience of Three Spoke Hospitals in Northern Italy.Viruses · 2024Article
- Current Mycoplasma pneumoniae epidemic among children in Shanghai: unusual pneumonia caused by usual pathogen.World journal of pediatrics : WJP · 2024Article
- Transient increased risk of influenza infection following RSV infection in South Africa: findings from the PHIRST study, South Africa, 2016-2018.BMC medicine · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSeveral local studies showed that the 2009 influenza pandemic delayed the RSV season. However, no global-level analyses are available on the possible impact of the 2009 influenza pandemic on the RSV season.
objectivesWe aim to understand the impact of the 2009 influenza pandemic on the RSV season.
methodsWe compiled data from published literature (through a systematic review), online reports/datasets and previously published data on global RSV seasonality and conducted a global-level systematic analysis on the impact of the 2009 influenza pandemic on RSV seasonality.
resultsWe included 354 seasons of 45 unique sites, from 26 countries. Globally, the influenza pandemic delayed the onset of the first RSV season by 0.58 months on average (95% CI: 0.42, 0.73; maximum delay: 2.5 months) and the onset of the second RSV season by a lesser extent (0.25 months; 95% CI: 0.12, 0.39; maximum delay: 3.4 months); no delayed onset was observed for the third RSV season. The delayed onset was most pronounced in the northern temperate, followed by the southern temperate, and was least pronounced in the tropics.
conclusionsThe 2009 influenza pandemic delayed the RSV onset on average by 0.58 months and up to 2.5 months. This suggests evidence of viral interference as well as the impact of public health measures and has important implications for preparedness for RSV season during the ongoing COVID-19 pandemic and future pandemics.
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.