More than 200 different viruses are known to cause the common cold, which is one of the reasons why it is so hard to formulate a cure. Symptoms usually begin two to three days after infection and include sore throat, coughing, runny nose, and fever. While treatment options like bed rest and medications can help relieve symptoms, nothing can actually "cure" a cold except for time.
(For more info on this topic, including how "common" this disease actually is, how the virus is transmitted, and possible prevention methods, click Common Cold.)
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