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Infectious mononucleosis (CMV) |
| Definition: |
| Infectious mononucleosis is an acute viral infection that can cause high fever, sore throat, and swollen lymph glands, especially in the neck. Unlike the more common form of mononucleosis, caused by the Epstein-Barr virus, this type is caused by cytomegalovirus (CMV).
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| Alternative Names: |
| CMV Mononucleosis; Acute acquired cytomegalovirus infection; Cytomegalovirus (CMV)
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| Causes, incidence, and risk factors: |
Infectious mononucleosis can be caused by several different viruses and a few types of bacteria. Less commonly it is caused by parasites. The most commmon causes are the Epstein-Barr virus (EBV) and cytomegalovirus (CMV), both members of the herpesvirus family. The symptoms of infection, including sore throat, occur less commonly with CMV than with EBV. The infection is transmitted by saliva, sexual contact, respiratory droplets, and blood transfusions. While the peak incidence occurs in 15- to 17-year-olds, the infection may occur at any age, most often between the ages of 10 and 35. Abnormal lymphocytes (white blood cells) are seen in the peripheral blood and may persist for 2 to 8 weeks. Abnormalities of liver function are also characteristic. R isk factors other than age are not known. The vast majority of people are exposed to CMV early in life and do not realize it because they have no symptoms. |
Reviewed By: Christopher Parsons, M.D., Department of Internal Medicine, Division of Infectious Diseases, University of Virginia, Charlottesville, VA. Review provided by VeriMed Healthcare Network.
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