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Influenza A virus subtype H1N1 is the most common cause of flu in humans.  Some strains of H1N1 are endemic in humans, including the strain responsible for the 1918 flu pandemic which killed 50–100 million people worldwide.  Other strains are endemic in pigs and in birds.
A new H1N1 virus strain is responsible for the outbreak first detected in Mexico in March 2009. It appears to be a reassortment of 4 strains, 1 endemic in humans, 1 in birds and 2 in pigs. Although called swine flu due to it predominantly containing swine strains, the World Organisation for Animal Health has proposed the name North American influenza because this new strain in its entirety has not been found in swine.  This strain was formally declared as a global flu pandemic by WHO after an emergency meeting on 11th June 2009.


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Provides information in general and for specific groups, what to do to stay healthy, situation updates, vaccine status, and online resource material. From the Centers for Disease Control and Prevention.
Swine flu news and headlines from around the web.
British Medical Journal Group presents flu learning modules, news, blog, podcasts, and resources.
Article by Michael Stuart Bronze, MD with history, current outbreak information, symptoms, prevention, treatment, and testing.
Includes symptoms of the illness, infection treatment and prevention, vaccine history, test, slideshows, disease history, and doctor's perspective.
Official European Union website provides news, statistics and graphs, documents, information and advice including antivirals and vaccines, and updates on what the European Commission is doing.
Tracking map of the latest alerts around the world and in the U.S.
Collaboration of clinicians and researchers working in intensive care units around the world. Aims to improve the care of patients with severe H1N1 infection through clinical research into its natural history and optimal treatment.
Overview covers swine flu symptoms, tests, treatment, risk factors, assessment of the pandemic, expert answers to questions, complications, and prevention.
Provides facts on swine flu (swine influenza A H1N1 virus) history, symptoms, how this contagious infection is transmitted, prevention with a vaccine, diagnosis, treatment, news and research.
Provides information on this disease with news, facts and available treatments.
Infectious disease news from across the globe.
Fact sheet with cause, information about current outbreak, symptoms, diagnosis, treatment, and prevention.
A series of news articles, features stories, research and forums from the medical and science magazine.
Ongoing coverage from a medical perspective includes news, research, surveillance updates, policy, publications and background material.
Provides news, signs and symptoms, prevention, caring for others, and information for health professionals.
Provides information on this strain of influenza that caused a flu pandemic in 2009-2010. Includes details of symptoms, causes, treatment and pregnancy.
Portal providing links to information on the 2009 outbreak of this disease.
Presents fact sheets, FAQ, symptoms, prevention, vaccine information, facts for specific groups, provinces, and territories, webcasts, media room, and preparedness guide.
Blog about the spreading of the H1N1 virus, public feelings and the government's efforts. The sources are newspaper cuttings, press releases from the Italian Ministry of Health and reports from WHO, CDC and ECDC.
Features investigations in the state, videos, press releases, and factsheets for the public and for professional health care workers.
Hyperlinked encyclopedia article about the global outbreak of the strain of influenza A virus subtype H1N1 identified in April 2009.
Peer-reviewed articles from the company's publications on the prevention, diagnosis, treatment, and history of Influenza.
Provides information in general and for specific groups, what to do to stay healthy, situation updates, vaccine status, and online resource material. From the Centers for Disease Control and Prevention.
A series of news articles, features stories, research and forums from the medical and science magazine.
Features investigations in the state, videos, press releases, and factsheets for the public and for professional health care workers.
Provides information on this disease with news, facts and available treatments.
Provides news, signs and symptoms, prevention, caring for others, and information for health professionals.
Overview covers swine flu symptoms, tests, treatment, risk factors, assessment of the pandemic, expert answers to questions, complications, and prevention.
Fact sheet with cause, information about current outbreak, symptoms, diagnosis, treatment, and prevention.
Article by Michael Stuart Bronze, MD with history, current outbreak information, symptoms, prevention, treatment, and testing.
Provides information on this strain of influenza that caused a flu pandemic in 2009-2010. Includes details of symptoms, causes, treatment and pregnancy.
Blog about the spreading of the H1N1 virus, public feelings and the government's efforts. The sources are newspaper cuttings, press releases from the Italian Ministry of Health and reports from WHO, CDC and ECDC.
Peer-reviewed articles from the company's publications on the prevention, diagnosis, treatment, and history of Influenza.
British Medical Journal Group presents flu learning modules, news, blog, podcasts, and resources.
Presents fact sheets, FAQ, symptoms, prevention, vaccine information, facts for specific groups, provinces, and territories, webcasts, media room, and preparedness guide.
Infectious disease news from across the globe.
Includes symptoms of the illness, infection treatment and prevention, vaccine history, test, slideshows, disease history, and doctor's perspective.
Collaboration of clinicians and researchers working in intensive care units around the world. Aims to improve the care of patients with severe H1N1 infection through clinical research into its natural history and optimal treatment.
Provides facts on swine flu (swine influenza A H1N1 virus) history, symptoms, how this contagious infection is transmitted, prevention with a vaccine, diagnosis, treatment, news and research.
Ongoing coverage from a medical perspective includes news, research, surveillance updates, policy, publications and background material.
Hyperlinked encyclopedia article about the global outbreak of the strain of influenza A virus subtype H1N1 identified in April 2009.
Official European Union website provides news, statistics and graphs, documents, information and advice including antivirals and vaccines, and updates on what the European Commission is doing.
Tracking map of the latest alerts around the world and in the U.S.
Swine flu news and headlines from around the web.
Portal providing links to information on the 2009 outbreak of this disease.

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Last update:
November 3, 2023 at 6:35:03 UTC
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