Acute Upper Respiratory Infections and Influenza
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Although a large group of common diseases, the upper respiratory infections are a confusing mass of uncertainty in relation to their nature and their treatment. They are easy to recognize, since we all suffer from them annually, but there is no clear understanding of their causes and no good correlation between aetiology and clinical and investigative data. It is fortunate that most of the common respiratory infections are relatively benign in terms of morbidity, complications and mortality, and that they are self-limiting. Because of our lack of understanding of their causes no effective specific therapy or prevention is possible.