(Medical Xpress)—A new study in the U.S. has shown that pigs vaccinated against one strain of influenza were worse off if subsequently infected by a related strain of the virus.
A new study of the strain of influenza A responsible for the 2009 H1N1 pandemic—pdm09—shows that the virus has passed from humans to swine about 370 times since 2009, and subsequent circulation in swine has resulted in ...
Jul 27, 2023
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Even though many people dismiss and misunderstand it—calling everything from a cold to a stomach bug "the flu"— influenza actually claims 12,000 to 56,000 lives in the U.S. every year. And that's in a normal flu season.
Dec 5, 2018
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Researchers in Finland said Thursday they had confirmed a link between the swine flu vaccine and the onset of the sleep disorder narcolepsy in children.
Sep 1, 2011
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Today's H1N1 flu—commonly known as the swine flu—appears to be a direct descendent of the influenza virus that caused the catastrophic 1918 pandemic, a new analysis shows.
May 10, 2022
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(HealthDay) -- Only 29 human cases of a new strain of "swine" flu have been identified in two years, but the U.S. Centers for Disease Control and Prevention is making sure it's prepared should the H3N2 strain become more ...
Aug 4, 2012
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A genetic finding could help explain why influenza becomes a life-threating disease to some people while it has only mild effects in others. New research led by the Wellcome Trust Sanger Institute has identified for the first ...
Mar 25, 2012
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(Medical Xpress) -- Researchers at the University of Southampton, University of Oxford and Retroscreeen Virology Ltd have discovered a series of peptides, found on the internal structures of influenza viruses that could lead ...
Jan 31, 2012
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People with asthma who are admitted to hospital with pandemic influenza H1N1 (swine flu) are half as likely to die or require intensive care than those without asthma, according to new research.
Sep 26, 2011
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While past exposure to influenza A viruses often builds immunity to similar, and sometimes different, strains of the virus, Canadian researchers are calling for more attention to exceptions to that rule.
Jan 16, 2018
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Swine influenza (also called H1N1 flu, swine flu, hog flu, and pig flu) is an infection by any one of several types of swine influenza virus. Swine influenza virus (SIV) is any strain of the influenza family of viruses that is endemic in pigs. As of 2009, the known SIV strains include influenza C and the subtypes of influenza A known as H1N1, H1N2, H3N1, H3N2, and H2N3.
Swine influenza virus is common throughout pig populations worldwide. Transmission of the virus from pigs to humans is not common and does not always lead to human influenza, often resulting only in the production of antibodies in the blood. If transmission does cause human influenza, it is called zoonotic swine flu. People with regular exposure to pigs are at increased risk of swine flu infection. The meat of an infected animal poses no risk of infection when properly cooked.
During the mid-20th century, identification of influenza subtypes became possible, allowing accurate diagnosis of transmission to humans. Since then, only 50 such transmissions have been confirmed. These strains of swine flu rarely pass from human to human. Symptoms of zoonotic swine flu in humans are similar to those of influenza and of influenza-like illness in general, namely chills, fever, sore throat, muscle pains, severe headache, coughing, weakness and general discomfort.
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