What exactly is bird flu?

Bird flu, also known as bird flu virus is mainly carried by birds before, and some mammals. There are actually 144 different strands of the virus, with varying intensity of symptoms and infectiousness. However, a strand in particular, H5N1, has caused widespread panic, because they not only have been transmitted to humans, but caused a fatality rate above 50%.

The details of bird flu are very technical and a bit 'difficult to understand,the average person. Details are available in 2 ebook "Guide for avian influenza and how to avoid capture." Influenza is generally divided into three categories: A, B and C. Avian flu is type A. Among the category A has 16 H subtypes and 9 N subtypes There are two variants of the virus in all subtypes, a low pathogenic form, which is rather mild, and a highly pathogenic form that is much more difficult. To date,Only H5 and H7 highly pathogenic virus variants.

What does this mean in English? Although there are many strands of the virus, only a few have ever known to seriously damage people. Although avian influenza was reported in early 1900, flush to the cause of concern H5N1 occurred recently for the first time happening in 1997 in Hong Kong. In the current outbreak, there were 100 people infected with the virus in Asia have been, and no more than half Survive.

Bird flu has the typical symptoms of flu strands. These include fever, sore throat, cough, conjunctivitis, pneumonia, and possibly, in severe cases. But with the H5N1 virus, the symptoms are severe and often result in death.

The biggest concern with the H5N1 virus is the ability of the virus from a pandemic. This may occur when creating a new virus, which causes severe disease in humans, and is easily spread from person to person. With bird> Flu, the first two conditions have already been achieved. H5N1 is a virus new to humans, although it had previously been found in poultry but also causes severe disease in humans, as did the deaths of more than half of the 100 people infected out of it. But at this point, the third criterion is not met. Avian influenza is primarily a man fell from poultry to people, not person-to on. Many people believe that it is only a matter of time before the virus mutates humans pointThe transmission is possible. At this point it becomes like a wildfire all over the world to spread.

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