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Cold and Flu - Basic IntroductionBY: Yoshi | Category: Education | Post Date: 2009-07-25
Common cold The common cold comprises a mixture of upper respiratory tract viral infections. Acute viral rhinopharyngitis, or acute coryza, known as an upper respiratory virus or commonly called the cold. It is a contagious, viral infectious disease of the upper respiratory system, primarily caused by rhinoviruses (picornaviruses) or coronaviruses. It is the most common infectious disease in humans; there is no known cure, but it is rarely fatal. Symptoms Common symptoms are sore throat, runny nose, nasal congestion, coughing and sneezing; accompanied by 'pink eye', muscle aches, fatigue, malaise, headaches, muscle weakness, uncontrollable shivering, loss of appetite, and rarely extreme exhaustion. Fever is a common symptom of influenza. Complications 1. The common cold can lead to opportunistic infections or superinfections such as acute bronchitis, bronchiolitis, croup, pneumonia, sinusitis, otitis media, or strep throat. 2. People with chronic lung diseases such as asthma and COPD are especially vulnerable. 3. Colds may cause acute exacerbations of asthma, emphysema or chronic bronchitis. Causes 1. Viral Agent: The common cold is most often caused by a type of picornavirus. Around 30-50% of colds are caused by rhinoviruses. Other viruses causing colds are coronavirus (causing 10-15%), human parainfluenza viruses, human respiratory syncytial virus, adenoviruses, enteroviruses, or metapneumovirus. 5-15% are caused by influenza viruses. 2. Sleep: Lack of sleep has been associated with the common cold. 3. Vitamin D: Low levels of vitamin D were associated with increased rates of the common cold. 4. Exposure to cold weather Flu (Influenza) Flu is a respiratory infection caused by a number of viruses. The viruses pass through the air and enter your body through your nose or mouth. The flu can be serious or even deadly for elderly people, newborn babies and people with certain chronic illnesses. Signs and symptoms Fever and cough the most common symptoms of influenza. Symptoms of influenza can start quite suddenly one to two days after infection. • Extreme coldness and fever • Body or muscle aches • Chills • Cough • Headache • Sore throat • Fatigue • Headache • Irritated watering eyes • Reddened eyes, skin (especially face), mouth, throat and nose • In children, gastrointestinal symptoms such as diarrhoea and abdominal pain. Article Source: http://www.saching.com About Author / Additional Info: Additional Articles: * Tips to ensure cost cutting and reducing expenditure * Scuderia Toro Rosso's New Stars and Stripes: Brook Johnston Arrives For Testing In Valencia * Why is it great to be born as a man * Qualities of a good teacher * Chatting on Internet - Be Careful! Does this article violate or infringe on your copyright ? It is a violation of our terms for authors to submit content which they did not write and claim it as their own. If this article infringes on your copyrights, then use our Contact us form with the detailed proof of infringement along with the offending article's title, URL and writer name. If you do not hear back from us then contact us again in another 10 days. Thank you. Comments on this article: (0 comments so far) * Additional comments are now closed for this article *
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