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flu
flu pandemic
flu virus
swine flu
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What Causing A Flu
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Flu is a seasonal viral disease threatning seriously the health of human being on epidemic mode essentially in the both seasons fall in winter. Flus is classified as a contagious viral infection and its mode of transmission is throuh droplets containing the flu virus exhalated by the respiratoty apparatus of the contaminated body and generally this virus is transmited to the closer person around the sicker. Symptoms's flu are manifested in the human body through non specific signs associating fever, migraine, cough and rhino pharyngite. The apparition of flu is sudden on epimedic season as its duration is for olny a few days. Flu is expressed in the human through visual signs like running nose and eyes,the respiratory apparatus react in coughing, the body lose its strenght and becomes weak, the throat swells and becomes jamed, the head heavy with pain of migraine and sometimes theses symptoms occuring with vomiting and diarrhe. The mode of contagion is assured by the globules of water derivated from flu sicker sneezing and also coughing. In effect,these droplets are rich of virus's flu and released into the air through running nose and coughing. When the closer person to the flu infected body, breaths the air around him, he is contamined and contracted to disease through the infection of its respiratory apparatus.

There are two types viral flu infection known in the medical lexix as epidemic and pandemic. The influenza epidemic or flu occurs in cold seasons fall and winter and each year. The pandemic flu comes a few times during one century when the new poultry species come to life like that happened in ASIA and caused the apparition of the H1N1 virus and the relevant infection is known the aviary influenza or swine flu.

This tragic incident which causing deaths, had created a panic in each country in the world about the probability to the prapagation contagion from one sicker person to others, but in 2009 the fears fell down in view the transmission of the flu pandemic virus through human had insignificant rate to occur. Flu is a serious disease and constitutes a major problems to health public organisations anywhere in the world as it is causing high number of deaths in the world.

The children and the elderly people are the most vulnerable category group of people to the flu viral infection. At the apparition of symptoms's flu, it is advisible to consult a doctor in case on non vaccination. The best prevention to stay away from this contagious disease, is to opt for a vaccination againt the influenza contamination just before coming the grippal seasons.


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