The,Cause,And,Effects,Common,F health The Cause And Effects Of The Common Flu In The World
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Influenza or the common flu is commonly known as `Flu` in most parts ofthe world. It is infectious and is caused by a virus called RNA. Itbelongs to the family of Orthomyxoviridae and affects birds and mammals. The commonest indicators of this disease are chills, sore throat,fever, muscle pains, coughing, severe headache, general weakness anddiscomfort. In its severe form, influenza can also cause pneumonia andthis can prove to be fatal, especially for those who are young and alsothe elderly. Influenza can also lead to nausea which may lead tovomiting in children, though these are symptoms in case of `stomachflu` only. As a general rule, influenza is spread by air through a patient`scoughs and sneezes, which creates aerosols holding the virus. Bird flucan also spread due to bird droppings, saliva, feces, nasal secretionsor blood. A person can get infected by coming in close contact withthese bodily fluids or through contact with polluted surfaces. Mostinfections are a result of airborne aerosols, though which form ofspread is most deadly is not completely clear till now. Common fluviruses are easily inactivated using detergents, disinfectants andsunlight. Common flu spreads all over the world as seasonal epidemics, andresults in thousands of deaths annually, sometimes the figure may touchthe million mark too in a pandemic year. During the 20th centuryitself, 3 influenza pandemics occurred and millions of people died dueto it. Each of the pandemic was a result of a unique species of virusin the humans. This generally happens when a prevalent virus istransmitted to humans from some other animal. An avian virus by the name of H5N1 did ring an alarm bell as a new flupandemic in Asia during the 90s, but till now it hasn`t evolved as aform which can spread easily between two people. Again in April 2009 anew strain of flu has evolved that has merged genes from pig, human,and the deadly bird flu. Dubbed as `swine flu`, it popped up in Mexico,US and also some other nations.Symptoms of influenza tend to start all of a sudden, just one or twodays after catching the infection. In most cases the initial symptomsare chills and a chilly sensation, though fever is also quite commonfrom the early period only. Many people feel so ill and weak that theyhave to be confined to their beds for several days, with complaints ofpains and aches throughout their bodies, especially in backs and legs.Other symptoms of common flu include aches in throat and joints,feeling very cold, fatigue, irritation in eyes or watering of eyes,headache, reddening of eyes, mouth, skin, nose and throat. According to the WHO, every year tens of millions of people catch thecommon flu. For most people it is just means missing one week of workbut elderly people run a high risk of death due to this. The worldwidedeath count due to this is nearly a few hundred thousand people. Commonflu can affect even perfectly healthy people and at any age. But oldpeople, children and people with chronic medical conditions can developcomplications such as bronchitis, pneumonia, sinus or ear infectionseasily.All over the world, common flu produces direct costs because of loss inproductivity and related medical treatment, and also indirect costs dueto preventative measures taken. In US alone it costs about $10 billionper year. Preventative costs can be quite high too. Worldwidegovernments have to spend billions of. dollars in preparation andplanning for a probable avian flu pandemic in terms of drugs andvaccines along with developing disaster exercises and improvingstrategies on border controls.
The,Cause,And,Effects,Common,F