Results 91 to 100 of about 118,844,745 (215)

Natural co-infection of influenza A/H3N2 and A/H1N1pdm09 viruses resulting in a reassortant A/H3N2 virus

open access: yesJournal of Clinical Virology, 2015
Despite annual co-circulation of different subtypes of seasonal influenza, co-infections between different viruses are rarely detected. These co-infections can result in the emergence of reassortant progeny.We document the detection of an influenza co-infection, between influenza A/H3N2 with A/H1N1pdm09 viruses, which occurred in a 3 year old male in ...
Rith, Sareth   +8 more
openaire   +3 more sources

Surveillance of human influenza A (H3N2) virus from 1999 to 2009 in southern Italy

open access: yes, 2013
The aim of this study was to evaluate the presence of influenza virus co-infections in humans and changes in the genetic variability of A(H3N2) virus strains in southern Italy from 1999 to 2009.
Donatelli I   +19 more
core   +1 more source

Hemagglutinin sequence conservation guided stem immunogen design from influenza A H3 subtype [PDF]

open access: yes, 2015
Seasonal epidemics caused by influenza A (H1 and H3 subtypes) and B viruses are a major global health threat. The traditional, trivalent influenza vaccines have limited efficacy because of rapid antigenic evolution of the circulating viruses.
Citron, Michael   +24 more
core   +1 more source

Dual Antiviral and Immunomodulatory Effects of Phytochemicals in Influenza A Virus Infection: Targeting Key Host Signaling Pathways

open access: yesMicrobiologyOpen, Volume 15, Issue 5, October 2026.
Influenza A virus modulates host innate immune pathways, including TLR, RIG‐I, MAPK, and NF‐κB signaling, to support replication and drive inflammatory pathology. Plant‐derived phytocompounds target these interconnected pathways, offering a potential host‐directed immunomodulatory approach complementary to conventional antivirals.
Dibakar Chowdhury   +3 more
wiley   +1 more source

Emergence and Fixing of Antiviral Resistance in Influenza A Via Recombination and Hitch Hiking [PDF]

open access: yes, 2009
The dramatic rise of oseltamivir resistance in the H1N1 serotype in the 2007/2008 season and the fixing of H274Y in the 2008/2009 season has raised concerns regarding individuals at risk for seasonal influenza, as well as development of similar ...
Henry L. Niman
core  

Influenza virus sequence feature variant type analysis: evidence of a role for NS1 in influenza virus host range restriction [PDF]

open access: yes, 2012
Genetic drift of influenza virus genomic sequences occurs through the combined effects of sequence alterations introduced by a low fidelity polymerase and the varying selective pressures experienced as the virus migrates through different host ...
García-Sastre, Adolfo   +27 more
core   +1 more source

Assessment of Immune Responses to a Trivalent Pichinde Virus-Vectored Vaccine Expressing Hemagglutinin Genes from Three Co-Circulating Influenza A Virus Subtypes in Pigs

open access: yes, 2023
Pichinde virus (PICV) can infect several animal species and has been developed as a safe and effective vaccine vector. Our previous study showed that pigs vaccinated with a recombinant PICV-vectored vaccine expressing the hemagglutinin (HA) gene of an ...
Sushmita Kumari   +7 more
core   +1 more source

Anti‐idiotypic antibodies as molecular mimics of conserved influenza hemagglutinin epitopes

open access: yesProtein Science, Volume 35, Issue 10, October 2026.
Abstract Broadly neutralizing antibodies (bNAbs) provide insights for developing universal influenza vaccines through their ability to neutralize diverse viral strains. However, designing antigens that reliably elicit bNAb responses remains challenging due to the difficulty in targeting conserved epitopes with a single antigen.
Hiroshi Itou   +7 more
wiley   +1 more source

Duration and severity of asthma‐like episodes in young children vary by viral and bacterial triggers

open access: yesPediatric Allergy and Immunology, Volume 37, Issue 10, October 2026.
This study investigates how specific viral and bacterial triggers and age are associated with the duration and severity of asthma‐like episodes in children aged 0–3 years. Rhinovirus, particularly rhinovirus C, and the bacterial pathogens Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis were associated with longer episode ...
Julie Nyholm Kyvsgaard   +14 more
wiley   +1 more source

Generation of a Reassortant Influenza A Subtype H3N2 Virus Expressing Gaussia Luciferase

open access: yesViruses, 2019
Reporter influenza A viruses (IAVs) carrying fluorescent or luminescent genes provide a powerful tool for both basic and translational research. Most reporter IAVs are based on the backbone of either subtype H1N1 viruses, A/Puerto Rico/8/1934 (PR8) or A ...
Lin Wang   +6 more
doaj   +1 more source

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