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Acute Upper Respiratory Infection (URI) Learning Center
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The common cold generally involves a runny nose, nasal congestion, and sneezing. You may also have a sore throat, cough, headache, or other symptoms. Over 200 viruses can cause a cold.
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Most acute respiratory diseases are viral infections. They may be complicated by bacterial superinfections in which a bacterial infection develops after a viral infection. In such a situation, however, an illness would be of longer duration and no...
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