ArticleVeterinary research2013
Dynamics of influenza A virus infections in permanently infected pig farms: evidence of recurrent infections, circulation of several swine influenza viruses and reassortment events.
Article in Veterinary research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.
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Who cites it
65 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Epidemiological features of influenza circulation in swine populations: A systematic review and meta-analysis.PloS one · 2017Pooled it
- Detecting swine influenza A virus during fattening and at slaughter: implications for monitoring strategies in fattening herds.Porcine health management · 2026Article
- Development of a nano-emulsion and evaluation of its intradermal adjuvant function of Swine Influenza H3N2 Vaccine.Virology journal · 2026Article
- Epidemiology of Influenza A virus in Swiss pig herds: subclinical circulation and associated risk factors.Porcine health management · 2026Article
- Genetic diversity and circulation of influenza A viruses in Italian pig farms: insights from surveillance and vaccination.Porcine health management · 2026Article
- Influenza A virus infection dynamics in two sow herds and effects of interventions.Porcine health management · 2026Article
- Epidemiology and Risk Modelling of Influenza A Virus Within and Between Pig Herds in Northern Lao PDR.Transboundary and emerging diseases · 2026Article
- Rapid surge of reassortant A(H1N1) influenza viruses in Danish swine and their zoonotic potential.Emerging microbes & infections · 2025Article
- Passive surveillance for Influenza A virus among swine, Brazil, 2009-2023.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025Article
- Disruption of influenza A virus transmission in gene-edited pigs.Emerging microbes & infections · 2025Article
- Systemic and Mucosal Immune Responses Induced by Adenoviral-Vectored Consensus H5 Influenza A Vaccines in Mice and Swine.Vaccines · 2025Article
- Trends in seroprevalence of influenza A virus infections in pigs in France (2008-2022).Porcine health management · 2025Article
- Swine influenza surveillance in Italy uncovers regional and farm-based genetic clustering.Frontiers in microbiology · 2025Article
- Evaluating preventive measures for the zoonotic transmission of swine influenza A variant at agricultural fairs in the United States: a mathematical modeling study.Frontiers in veterinary science · 2025Article
- Estimating the risk of zoonotic transmission of swine influenza A variant during agricultural fairs in the United States: a mathematical modeling.Frontiers in veterinary science · 2025Article
- Quantifying the impact of vaccination on transmission and diversity of influenza A variants in pigs.Journal of virology · 2024Article
- Article
- Effect of stabilizers on the detection of swine influenza A virus (swIAV) in spiked oral fluids over time.Porcine health management · 2024Article
- The introduction of a highly virulent PRRSV strain in pig farms is associated with a change in the pattern of influenza A virus infection in nurseries.Veterinary research · 2024Article
- Dynamic of swine influenza virus infection in weaned piglets in five enzootically infected herds in Germany, a cohort study.Porcine health management · 2024Article
5 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Concomitant infections by different influenza A virus subtypes within pig farms increase the risk of new reassortant virus emergence. The aims of this study were to characterize the epidemiology of recurrent swine influenza virus infections and identify their main determinants. A follow-up study was carried out in 3 selected farms known to be affected by repeated influenza infections. Three batches of pigs were followed within each farm from birth to slaughter through a representative sample of 40 piglets per batch. Piglets were monitored individually on a monthly basis for serology and clinical parameters. When a flu outbreak occurred, daily virological and clinical investigations were carried out for two weeks. Influenza outbreaks, confirmed by influenza A virus detection, were reported at least once in each batch. These outbreaks occurred at a constant age within farms and were correlated with an increased frequency of sneezing and coughing fits. H1N1 and H1N2 viruses from European enzootic subtypes and reassortants between viruses from these lineages were consecutively and sometimes simultaneously identified depending on the batch, suggesting virus co-circulations at the farm, batch and sometimes individual levels. The estimated reproduction ratio R of influenza outbreaks ranged between 2.5 [1.9-2.9] and 6.9 [4.1-10.5] according to the age at infection-time and serological status of infected piglets. Duration of shedding was influenced by the age at infection time, the serological status of the dam and mingling practices. An impaired humoral response was identified in piglets infected at a time when they still presented maternally-derived antibodies.
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