| http://www.w3.org/ns/prov#value | - ???The common cold is usually caused by a virus, most often a rhinovirus,??? explains Dr. Lauren Wilfling, a Mercy Clinic family physician. ???It typically lasts about five to seven days, and can cause symptoms, including nasal congestion, runny nose, low-grade fever, cough, sneezing, sore throat, headache, muscle aches and fatigue.???
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