MEDICAL

Like all influenza viruses, swine flu viruses change constantly. Pigs can be infected by bird and human influenza viruses as well as swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassort (that is, swap genes) and new viruses can emerge.

That is what has happened with the recent cases of H1N1. This form of the H1N1 swine flu virus has never been seen before, and it is also causing illness among humans in many countries, including the United States. It is a genetic mixture of viruses from pigs, birds, and people. Because it is a new virus, most people’s immune systems do not know how to fight this H1N1 virus. So, many people are susceptible to becoming ill. A variant of H1N1 caused the flu pandemic of 1918.

Swine influenza (swine flu) is a respiratory disease of pigs. Swine flu is caused by type A influenza virus, which is the only type of influenza virus to have caused pandemics. Swine flu outbreaks in pigs occur regularly, causing high levels of illness and low death rates. Swine influenza viruses may circulate among swine throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans.

Swine flu occasionally infects people without causing large outbreaks. Only twelve cases of swine flu were reported in the United States over the last four years (January 2005 through January 2009). None of them caused deaths.

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Tags: H1n1 | immune systems | influenza virus | Swine Flu | swine influenza viruses | Symptoms of Swine Flu | symptoms of vomiting and diarrhea | the flu pandemic | variant of H1N1

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<h2>Swine Flu Respiratory Disease of Pigs</h2> <p style="text-align: justify;">Like all influenza viruses, swine flu viruses change constantly. Pigs can be infected by bird and human influenza viruses as well as swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassort (that is, swap <a title="genes" href="http://911medicalcare.com/medicalcare/genes/">genes</a>) and new viruses can emerge.</p> <p style="text-align: justify;">That is what has happened with the recent cases of H1N1. This form of the H1N1 swine flu virus has never been seen before, and it is also causing illness among humans in many countries, including the United States. It is a genetic mixture of viruses from pigs, birds, and <a title="people" href="http://911medicalcare.com/medicalcare/people/">people</a>. Because it is a new virus, most people’s immune systems do not know how to fight this H1N1 virus. So, many people are susceptible to becoming ill. A variant of H1N1 caused the flu <a title="pandemic" href="http://911medicalcare.com/medicalcare/pandemic/">pandemic</a> of 1918.</p> <p style="text-align: justify;">Swine influenza (swine flu) is a respiratory disease of pigs. Swine flu is caused by type A influenza virus, which is the only type of influenza virus to have caused pandemics. Swine flu outbreaks in pigs occur regularly, causing high levels of illness and low death rates. Swine influenza viruses may circulate among swine throughout the year, but most outbreaks occur during the late fall and winter months similar to outbreaks in humans.</p> <p style="text-align: justify;">Swine flu occasionally infects people without causing large outbreaks. Only twelve cases of swine flu were reported in the United States over the last four years (January 2005 through January 2009). None of them caused deaths.</p> <p style="text-align: justify;">(Read More on Free Ebook at PDF Format)</p> <p style="text-align: justify;"><a href="http://911medicalcare.com/pdf/swine-flu-respiratory-disease-of-pigs" target="_blank">Download</a> Swine Flu Respiratory Disease of Pigs.pdf</p> <p><a href="http://911medicalcare.com/wp-content/uploads/2009/07/swine-flu-respiratory-disease-of-pigs-image.jpg"><img class="alignnone size-full wp-image-910" title="swine flu respiratory disease of pigs image" src="http://911medicalcare.com/wp-content/uploads/2009/07/swine-flu-respiratory-disease-of-pigs-image.jpg" alt="swine flu respiratory disease of pigs image" width="350" height="350" /></a></p><br/><a href="http://www.socialmarker.com/?link=http://911medicalcare.com/swine-flu/swine-flu-respiratory-disease-of-pigs/&title=Swine+Flu+Respiratory+Disease+of+Pigs&text=...&tags=" target="_blank"><img src= "http://www.socialmarker.com/bookmark.gif" border="0" /></a><noscript><a href="http://www.socialmarker.com" >Social Bookmarking</a></noscript> <p>The article <a href="http://911medicalcare.com/swine-flu/swine-flu-respiratory-disease-of-pigs/">Swine Flu Respiratory Disease of Pigs</a> is provided by <a href="http://911medicalcare.com" title="Manual Nurse and health Guidelines"> Manual Nurse and Health Guidelines</a>. The article from<a href="http://911medicalcare.com" title="Medical"> Medical</a> site is freely distributed for non-commercial purposes to include the source for the article and does not alter the content.</p>

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