Related topics: china , bird flu
Influenza A virus subtype H5N1
hideInfluenza A virus subtype H5N1, also known as "bird flu," A(H5N1) or simply H5N1, is a subtype of the Influenza A virus which can cause illness in humans and many other animal species. A bird-adapted strain of H5N1, called HPAI A(H5N1) for "highly pathogenic avian influenza virus of type A of subtype H5N1", is the causative agent of H5N1 flu, commonly known as "avian influenza" or "bird flu". It is enzootic in many bird populations, especially in Southeast Asia. One strain of HPAI A(H5N1) is spreading globally after first appearing in Asia. It is epizootic (an epidemic in nonhumans) and panzootic (affecting animals of many species, especially over a wide area), killing tens of millions of birds and spurring the culling of hundreds of millions of others to stem its spread. Most references to "bird flu" and H5N1 in the popular media refer to this strain.
According to the FAO Avian Influenza Disease Emergency Situation Update, H5N1 pathogenicity is continuing to gradually rise in endemic areas but the avian influenza disease situation in farmed birds is being held in check by vaccination. Eleven outbreaks of H5N1 were reported worldwide in June 2008 in five countries (China, Egypt, Indonesia, Pakistan and Vietnam) compared to 65 outbreaks in June 2006 and 55 in June 2007. The "global HPAI situation can be said to have improved markedly in the first half of 2008 [but] cases of HPAI are still underestimated and underreported in many countries because of limitations in country disease surveillance systems".
For more information about Influenza A virus subtype H5N1, read the full article at
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News tagged with h5n1 virus
InDevR's FluChip detects, distinguishes swine-origin H1N1 from human influenza viruses
May 05, 2009 |
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InDevR, a small biotech company in Boulder, CO, and the Influenza Division of the Centers for Disease Control and Prevention (CDC) in Atlanta confirmed today that the M gene version of InDevR's FluChip can detect swine-origin ...
Bird flu found in Tibet: state media
Apr 19, 2009 |
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Chinese officials had confirmed the outbreak of a deadly strain of bird flu among poultry in the Tibetan capital Lhasa, state media reported Sunday, quoting the ministry of agriculture.
Novel pandemic flu vaccine effective against H5N1 in mice
Mar 01, 2009 |
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Vaccines against H5N1 influenza will be critical in countering a possible future pandemic. Yet public health experts agree that the current method of growing seasonal influenza vaccines in chicken eggs is slow and inefficient.
Scientists identify human monoclonal antibodies effective against bird and seasonal flu viruses
Biology /
Feb 22, 2009 |
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Researchers at the Dana-Farber Cancer Institute, Burnham Institute for Medical Research and the Centers for Disease Control and Prevention have reported the identification of human monoclonal antibodies (mAb) that neutralize ...
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People with less education could be more susceptible to the flu
9 hours ago |
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People who did not earn a high school diploma could be more likely to get H1N1 and the vaccine might be less effective in them compared to those who earned a diploma, new research shows.
Population movement can be critical factor in dengue's spread
17 hours ago |
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Human movement is a key factor of dengue virus inflow in Rio de Janeiro, according to results from researchers based at the Oswaldo Cruz Foundation (Fiocruz) in Brazil. The results, based on data from a severe epidemic in ...
Exposure to several common infections over time may be associated with risk of stroke
Medicine & Health / Neuroscience
Nov 09, 2009 |
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Cumulative exposure to five common infection-causing pathogens may be associated with an increased risk of stroke, according to a report posted online today that will appear in the January 2010 print issue of Archives of ...
Scientists explain binding action of 2 key HIV antibodies; could lead to new vaccine design
Nov 09, 2009 |
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A very close and detailed study of how the most robust antibodies work to block the HIV virus as it seeks entry into healthy cells has revealed a new direction for researchers hoping to design an effective vaccine.
WHO: AIDS leading cause of death, disease in women
Medicine & Health / HIV & AIDS
Nov 09, 2009 |
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(AP) -- In its first study of women's health around the globe, the World Health Organization said Monday that the AIDS virus is the leading cause of death and disease among women between the ages of 15 and 44.
Researchers complete draft genome sequence for cassava
Nov 09, 2009 |
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A team of academic, government and industry researchers has completed a first draft of the cassava (Manihot esculenta) genome. The project is an important first step in accelerating the pace of research on this subsistence ...
H1N1 Virus Can Be Killed by Acidic Ozone Water
Nov 09, 2009 |
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(PhysOrg.com) -- Scientists have found that acidic ozone water can deactivate H1N1 viruses very effectively, offering a promising disinfectant for the millions of people trying to avoid the disease. Acidic ...
15,000 reasons to worry about invasive species
Nov 09, 2009 |
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A day at the beach in Wisconsin's North Woods didn't used to go like this. Candy Dailey spent a Fourth of July holiday splashing with grandkids on the sandy shore of Lake Metonga when she felt a nasty sting on her foot.
Framed for child porn -- by a PC virus
Nov 08, 2009 |
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(AP) -- Of all the sinister things that Internet viruses do, this might be the worst: They can make you an unsuspecting collector of child pornography.
Island village hit by suspected swine flu
Nov 07, 2009 |
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(AP) -- Suspected swine flu is sweeping a traditional Eskimo whaling village on a remote Alaska island - prompting an urgent medical mission to deliver help.
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