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Infectious Mononucleosis (Mono)

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Infectious mononucleosis (mono) facts

  • Infectious mononucleosis (mono) is a contagious illness typically caused by the Epstein-Barr virus (EBV).
  • This infectious disease can be spread by saliva, and the incubation period for mono is four to eight weeks. Using contaminated items, such as drinking glasses or toothbrushes, can spread the infection.
  • Most adults have laboratory evidence (antibodies against the Epstein-Barr virus) indicative of a previous infection with EBV and are immune to further infection.
  • The symptoms (clinical manifestations) of mono include
  • The diagnosis of mono is confirmed by blood tests.
  • Mono can cause liver inflammation (hepatitis) and enlargement of the spleen.
  • Vigorous contact sports should be avoided during the illness and recovery phase to prevent rupture of the spleen.
  • The long-term prognosis for most people with mono is excellent, and severe complications are rare.
Medically Reviewed by a Doctor on 7/3/2017


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