Influenza A Virus, H1N1 Subtype
"Influenza A Virus, H1N1 Subtype" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A subtype of INFLUENZA A VIRUS with the surface proteins hemagglutinin 1 and neuraminidase 1. The H1N1 subtype was responsible for the Spanish flu pandemic of 1918.
| Descriptor ID |
D053118
|
| MeSH Number(s) |
B04.820.545.405.400.214
|
| Concept/Terms |
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Below are MeSH descriptors whose meaning is more general than "Influenza A Virus, H1N1 Subtype".
Below are MeSH descriptors whose meaning is more specific than "Influenza A Virus, H1N1 Subtype".
This graph shows the total number of publications written about "Influenza A Virus, H1N1 Subtype" by people in this website by year, and whether "Influenza A Virus, H1N1 Subtype" was a major or minor topic of these publications.
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| Year | Major Topic | Minor Topic | Total |
|---|
| 2003 | 1 | 0 | 1 |
| 2004 | 1 | 0 | 1 |
| 2007 | 1 | 1 | 2 |
| 2008 | 2 | 1 | 3 |
| 2009 | 4 | 1 | 5 |
| 2010 | 9 | 0 | 9 |
| 2011 | 7 | 2 | 9 |
| 2012 | 7 | 3 | 10 |
| 2013 | 8 | 0 | 8 |
| 2014 | 3 | 2 | 5 |
| 2015 | 3 | 1 | 4 |
| 2016 | 1 | 1 | 2 |
| 2017 | 2 | 4 | 6 |
| 2018 | 2 | 6 | 8 |
| 2019 | 2 | 4 | 6 |
| 2020 | 4 | 4 | 8 |
| 2021 | 11 | 3 | 14 |
| 2022 | 6 | 1 | 7 |
| 2023 | 5 | 0 | 5 |
| 2024 | 6 | 3 | 9 |
| 2025 | 1 | 4 | 5 |
| 2026 | 1 | 3 | 4 |
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Below are the most recent publications written about "Influenza A Virus, H1N1 Subtype" by people in Profiles.
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Absolute and Relative Effectiveness of Cell Culture-Based and Egg-Based Quadrivalent Inactivated Influenza (Flu) Vaccine Products From the 2014-2015 to 2018-2019 Seasons, US Flu VE Network. Clin Infect Dis. 2026 09 02; 83(2):289-302.
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ICU admission and mortality in adult patients with influenza A(H1N1)pdm09-related pneumonia in Vietnam since the 2009 H1N1 pandemic: A 10-year cohort study. PLoS One. 2026; 21(8):e0348450.
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Pediatric Vaccine Effectiveness Against Influenza Hospitalization and Outpatient Visits: 2021-2024. Pediatrics. 2026 May 01; 157(5).
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Severity of Clinical Presentation and Outcomes in Hospitalized Adult People With Influenza by Type and Subtype, United States-2017-2020. Clin Infect Dis. 2026 03 17; 82(3):e580-e588.
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Protecting pregnancy during pandemics: What recent outbreaks teach us. Hum Vaccin Immunother. 2025 12; 21(1):2595779.
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Influenza Vaccine Effectiveness Against Medically Attended Outpatients Illness, United States, 2023-2024 Season. Clin Infect Dis. 2025 11 06; 81(4):e184-e191.
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Vaccine Effectiveness Against Influenza A(H1N1), A(H3N2), and B-Associated Hospitalizations, United States, 1 September 2023 to 31 May 2024. J Infect Dis. 2025 Oct 15; 232(4):e626-e636.
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Recombinant quadrivalent influenza vaccine (RIV) induces robust cell-mediated and HA-specific B cell humoral immune responses among healthcare personnel. Vaccine. 2025 Aug 13; 61:127361.
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Pediatric Clinical Influenza Disease by Type and Subtype 2015-2020: A Multicenter, Prospective Study. J Pediatric Infect Dis Soc. 2025 Jan 20; 14(1).
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Reduced Effectiveness of Repeat Influenza Vaccination: Distinguishing Among Within-Season Waning, Recent Clinical Infection, and Subclinical Infection. J Infect Dis. 2024 Dec 16; 230(6):1309-1318.