Cold and flu season is nothing to get excited about. Americans catch an estimated 1 billion colds each year. In fact, the common cold is among the leading reasons for visiting a doctor and for missing school or work. The common cold is most often caused by rhinoviruses.
2 It is typically a short, mild illness. Early symptoms include headache, sneezing, chills, and sore throat. As the cold progresses, later symptoms include nasal discharge, nasal obstruction, cough, and low energy.
3
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