ArticleViruses2021
Genetic Variability among Swine Influenza Viruses in Italy: Data Analysis of the Period 2017-2020.
Article in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 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.
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Who cites it
21 citing papers in PubMed, 34 citations in OpenAlex.
- First Human Infection with Influenza A(H1N2)v Virus - Yunnan Province, China, 2026.China CDC weekly · 2026Article
- Genetic and biological characterization of H9N2 avian influenza viruses isolated from swine in China.BMC veterinary research · 2026Article
- Genetic diversity and circulation of influenza A viruses in Italian pig farms: insights from surveillance and vaccination.Porcine health management · 2026Article
- Diverse genomic landscape of swine influenza A virus in England (2014-2021).Microbial genomics · 2026Article
- Rapid surge of reassortant A(H1N1) influenza viruses in Danish swine and their zoonotic potential.Emerging microbes & infections · 2025Article
- Eurasian 1C swine influenza A virus exhibits high pandemic risk traits.Emerging microbes & infections · 2025Article
- From North to South: transmission dynamics of H1N1pdm09 swine influenza A viruses in Italy.The Journal of general virology · 2025Article
- Article
- Major change in swine influenza virus diversity in France owing to emergence and widespread dissemination of a newly introduced H1N2 1C genotype in 2020.Virus evolution · 2025Article
- Swine influenza surveillance in Italy uncovers regional and farm-based genetic clustering.Frontiers in microbiology · 2025Article
- EAVLD 2024 - 7Italian journal of food safety · 2024Article
- Review
- Pathogenicity and escape to pre-existing immunity of a new genotype of swine influenza H1N2 virus that emerged in France in 2020.Veterinary research · 2024Article
- Two genotypes of H3N2 swine influenza viruses identified in pigs from Shandong Province, China.Frontiers in cellular and infection microbiology · 2024Article
- Article
- Influenza A Virus in Pigs in Senegal and Risk Assessment of Avian Influenza Virus (AIV) Emergence and Transmission to Human.Microorganisms · 2023Article
- Reverse-zoonoses of 2009 H1N1 pandemic influenza A viruses and evolution in United States swine results in viruses with zoonotic potential.PLoS pathogens · 2023Article
- Seroconversion of a Swine Herd in a Free-Range Rural Multi-Species Farm against HPAI H5N1 2.3.4.4b Clade Virus.Microorganisms · 2023Article
- Long-Term Serological Investigations of Influenza A Virus in Free-Living Wild Boars (Microorganisms · 2022Article
- Influenza A in Wild Boars: Viral Circulation in the Emilia-Romagna Region (Northern Italy) between 2017 and 2022.Animals : an open access journal from MDPI · 2022Article
Corrections and comments
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Authors and funding
15 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Swine play an important role in the ecology of influenza A viruses (IAVs), acting as mixing vessels. Swine (sw) IAVs of H1N1 (including H1N1pdm09), H3N2, and H1N2 subtypes are enzootic in pigs globally, with different geographic distributions. This study investigated the genetic diversity of swIAVs detected during passive surveillance of pig farms in Northern Italy between 2017 and 2020. A total of 672 samples, IAV-positive according to RT-PCR, were subtyped by multiplex RT-PCR. A selection of strains was fully sequenced. High genotypic diversity was detected among the H1N1 and H1N2 strains, while the H3N2 strains showed a stable genetic pattern. The hemagglutinin of the H1Nx swIAVs belonged to HA-1A, HA-1B, and HA-1C lineages. Increasing variability was found in HA-1C strains with the circulation of HA-1C.2, HA-1C.2.1 and HA-1C.2.2 sublineages. Amino acid deletions in the HA-1C receptor binding site were observed and antigenic drift was confirmed. HA-1B strains were mostly represented by the Δ146-147 Italian lineage HA-1B.1.2.2, in combination with the 1990s human-derived NA gene. One antigenic variant cluster in HA-1A strains was identified in 2020. SwIAV circulation in pigs must be monitored continuously since the IAVs' evolution could generate strains with zoonotic potential.
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