Learn About H1N1 Influenza

What is the definition of H1N1 Influenza?

The H1N1 virus (swine flu) is an infection of the nose, throat, and lungs. It is caused by the H1N1 influenza virus.

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What are the alternative names for H1N1 Influenza?

Swine flu; H1N1 type A influenza

What are the causes of H1N1 Influenza?

Earlier forms of the H1N1 virus were found in pigs (swine). Over time, the virus changed (mutated) and infected humans. H1N1 is a new virus first detected in humans in 2009. It spread quickly around the world.

The H1N1 virus is now considered a regular flu virus. It is one of the three viruses included in the regular (seasonal) flu vaccine.

You cannot get H1N1 flu virus from eating pork or any other food, drinking water, swimming in pools, or using hot tubs or saunas.

Any flu virus can spread from person to person when:

  • Someone with the flu coughs or sneezes into air that others breathe in.
  • Someone touches a doorknob, desk, computer, or counter with the flu virus on it and then touches their mouth, eyes, or nose.
  • Someone touches mucus while taking care of a child or adult who is ill with the flu.

Symptoms, diagnosis, and treatment of H1N1 influenza are similar to that for the flu in general.

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What are the latest H1N1 Influenza Clinical Trials?
Post-Covid-19 Emotional Aspects of Hospital Staff
Summary: The ongoing SARS-CoV2 or Covid-19 pandemic is causing a major global health crisis. In France, it prompted an urgent reorganization of the healthcare supply, mobilizing caregivers and hospital staff in a climate of uncertainty. Health services have been put to the test, some staff being on the front line, others having faced the reorganization of the health system necessitated by such a pandemic.~...
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A Phase 3, Randomized, Observer-blind, Controlled Trial to Assess the Efficacy, Immunogenicity and Safety of BBIBP-CorV Vaccine Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection
Summary: To expand the access and delivery of COVID-19 Vaccines in Africa (ECOVA), the investigators will conduct a phase 3, individually randomized, observer-blind, controlled (influenza vaccine) trial to evaluate the safety and efficacy of the BBIBP-CorV vaccine against any severe acute respiratory syndrome 2 (SARS-CoV- 2) infection among adults 18 years and older. The BBIBP-CorV vaccine is an inactivate...
What are the Latest Advances for H1N1 Influenza?
Genetic Variability among Swine Influenza Viruses in Italy: Data Analysis of the Period 2017-2020.
Summary: Genetic Variability among Swine Influenza Viruses in Italy: Data Analysis of the Period 2017-2020.
Establishment of a Risk Score Model for Early Prediction of Severe H1N1 Influenza.
Summary: Establishment of a Risk Score Model for Early Prediction of Severe H1N1 Influenza.
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Association between plasma glycocalyx component levels and poor prognosis in severe influenza type A (H1N1).
Summary: Association between plasma glycocalyx component levels and poor prognosis in severe influenza type A (H1N1).
Who are the sources who wrote this article ?

Published Date: May 03, 2021
Published By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

What are the references for this article ?

Centers for Disease Control and Prevention website. Influenza (flu). www.cdc.gov/flu/index.htm. Updated August 20, 2021. Accessed August 25, 2021.

Treanor JJ. Influenza viruses, including avian influenza and swine influenza. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 165.