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Common cold - Overview

Alternative Names

Upper respiratory infection - viral; Cold

Definition of Common cold:

The common cold generally involves a runny nose, nasal congestion, and sneezing. You may also have a sore throat, cough, headache, or other symptoms.

Click here to see a video about the difference between a cold and the flu.

Causes, incidence, and risk factors:

It is called the “common cold” for good reason. There are over one billion colds in the United States each year. You and your children will probably have more colds than any other type of illness.

Colds are the most common reason that children miss school and parents miss work. Parents often get colds from their children.

Children typically get up to eight colds every year. They usually get them from other children. A cold can spread quickly through schools or daycares.

Colds can occur at any time of the year, but they are most common in the winter or rainy seasons.

A cold virus spreads through tiny, air droplets that are released when the sick person sneezes, coughs, or blows their nose.

You can catch a cold if:

  • A person with a cold sneezes, coughs, or blows their nose near you
  • You touch your nose, eyes, or mouth after you have touched something contamined by the virus, such as a toy or doorknob.

People are most contagious for the first 2 to 3 days of a cold. A cold is usually not contagious after the first week.

  • Reviewed last on: 2/17/2011
  • David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine.

References

Turner RB. The common cold. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 53.

Simasek M, Blandino DA. Treatment of the common cold. American Family Physician. Feb 2007:75(4).

Shah SA, Sander S, White CM, Rinaldi M, Coleman CI. Evaluation of echinacea for the prevention and treatment of the common cold: a meta-analysis. Lancet Infect Dis. 2007;7(7):473-80.

Hemilä H, Chalker E, Douglas B. Vitamin C for preventing and treating the common cold. Cochrane Database of Systematic Reviews 2007, Issue 3. Art. No.: CD000980.

Singh M, Das RR. Zinc for the common cold. Cochrane Database of Systematic Reviews 2011, Issue 2. Art. No.: CD001364.

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