Influenza, which is commonly known as flu, is the infectious disease which infects the birds as well as mammals mainly on the upper airways of lungs in the mammals. It is caused by the RNA germ of the Orthomyxoviridae relations 'the flu viruses. Some of the most common and typical symptoms of the flu in humans are pharyngitis, fever, sore throat, muscle pains or myalgia, coughing, harsh headache and malaise more over it also causes fatigue and weakness. The cold and 'stomach flu' are extremely different from the flu. Flu can be faraway more severe as compared to the common cold and may even lead one to death. Flu and the frequent cold are caused through very dissimilar viruses. The Gastroenteritis is commonly known as the "stomach flu" or the "24 hour flu"; except that it is a misnomer as it is not associated with the actual flu. Influenza or Flu rapidly spreads about the world in the seasonal epidemics, resulting in killing millions of populace in the pandemic years plus hundreds of thousands in the no pandemic years. Flu leads to health care expenses and much of the lost productivity. Three of the flu pandemics in 20th century, all following the major genetic alter in the virus, which killed millions of people worldwide. The world's present major influenza pandemic danger is H5N1; however it is at present typically the flu in birds, not in humans.
The word flu has its origins in the 15th century Italy, somewhere the source of the disease was attributed to the unfavorable astrological influences. The Evolution in the medical thought lead to its alteration to the "flu di freddo", sensing "pressure of the cold", which by the 18th century became the prevalent terminology in the English-speaking world as well. The scientists all over the world are looking anxiously at the increasing prospect of a return of the avian influenza, commonly recognized as the bird flu. The First identified in Italy in the year 1900, it is also called as the H5N1 virus concerned in the immense Spanish Flu pandemic of the year 1918-1919 that kill around 40 million people. I pronounce "implicated in" rather than saying "caused," since it was government policies which made the death toll a large amount superior than it desired to be. Except there is no hesitation H5N1 is a main killer.
To take precaution one should primarily make out how they spread and then break off that process. These Viruses travel by air as well as by touch. If somebody sneezes near you and droplet of infected mucus gets into ones eyes or nose. You got it. When an infected patient rubs his nose and shakes his hand and rubs his nose. One gets it. Touch and Air. So we include keeping it away of our noses. In addition we have to maintain it off our skin