CH. 21 DISEASES OF THE RESPIRATORY TRACT

Flu symptoms are most contagious 24 hrs. before becoming ill and may be spread for 5-7 days. Here are a few common respiratory infections: Common Cold: Typically, symptoms are stuffy nose, scratchy throat, sneezing, “sometimes” a slight fever, headache, runny nose, and cough. People usually feel better by day 5, but coughing and nasal ... ................
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