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The World Health Organization (WHO) recently sounded a global health alarm in reaction to a new danger that has been appearing in many parts, especially Asia. Discover extra information on a related essay by navigating to  [http://ameblo.jp/dishpath37/entry-11568105259.html close window] . Browse here at the link  [http://ameblo.jp/ideachest75/entry-11564505387.html continue reading]  to explore the reason for this viewpoint. This threat may be the avian flu, more commonly called bird flu, which is an infectious diseases that influences only birds..until recently. Precisely what is bird flu? Bird flu is an infectious disease due to several sub-types of the Influenza A virus, which will be known to affect birds, particularly migratory birds, geese and chickens. Bird flu can be supposedly known to affect pigs and ducks although these animals only serve as carriers and are not known to exhibit signs of the disease. Migratory birds, generally speaking, are prepared to deal with the virus. They don't get sick but they've the capability to contaminate other birds in places they travel to. Because migratory birds travel great distances, usually from one country to another this can be crucial element in the spread of dis-ease. When did chicken virus start? Bird flu is not a brand new infection. First found in Italy in 1878, it was initially called since it mainly affected chicken livestock chicken affect. But, it was only in 1955 that the Influenza A virus is the cause of bird flu. Ever since then, a few subtypes of the Influenza A virus is discovered in about a hundred bird species. In accordance with research, wild waterfowls, especially ducks, would be the most typical carriers of the disease. The geese, however, do not get sick from it. It was discovered that shorebirds, waterfowls and gulls are natural reservoirs of the bird flu virus. These animals may actually allow us anti-bodies to fight against herpes. In case people hate to discover extra info on  [http://ameblo.jp/fridaycellar85/entry-11568886546.html kayla hodge taylor] , there are thousands of libraries people can pursue. Other bird species, however, haven't produced this defense to the virus. Signs of bird flu Birds with mild types of avian flu could exhibit beautiful feathers and poor egg production. Birds with high level or severe kinds of the condition may show signs of respiratory infections, extreme shedding and a swollen head. When the illness worsens, death frequently comes with-in 48-hours. It is because chicken virus not only influences the respiratory systems of birds but also organs and other tissues, creating significant hemorrhaging. History of bird flu outbreaks In the 1980-s, bird flu outbreaks in birds and chickens transpired in Scotland, England, Canada, Germany, United States Of America, Australia and Ireland. Again in the 1990s the same places, with the exception of Germany and Scotland, had outbreaks. This time around, Italy, Pakistan, Hong-kong, the Netherlands and Chile joined them. However, these outbreaks were small-scale; and extremely pathogenic outbreaks are rare. Then in 1997, a significant out-break of bird flu occurred in Hong Kong, which left 18 people infected and six people killed. In response to the outbreak, the Hong Kong government killed Hong Kongs whole chicken citizenry, that was estimated at 1.5 million. Many believe that this rapid response to the bird flu outbreak was the best s-olution and helped prevent it from becoming a pandemic. To ascertain if your bird flu virus is highly pathogenic, eight chickens between eight and four weeks old are inoculated using the infectious virus. If 75 per cent of the products (six birds) die with-in seven days, herpes is recognized as to be very pathogenic. Furthermore, a highly pathogenic virus may show a distinctive sequence of proteins located at the cleavage site, the HA a part of the string.