Infectious mononucleosis (mono) occurs in about 1 out of
2,000 people every year. People between the ages of 15 and 24 are most likely
to have symptoms of mono.1
Most people have been exposed to
Epstein-Barr virus (EBV), which causes mono, by the
time they reach adulthood. They likely won't have symptoms, but they can spread
the virus to others every now and then throughout their lives.
Yellow fever is a viral infection transmitted by a bite from infected mosquitoes most commonly found in parts of South America and Africa. When transmitted to humans, the yellow fever virus can damage the liver and other internal organs and be potentially fatal.
The World Health Organization estimates there are 200,000 cases of yellow fever worldwide each year, resulting in 30,000 deaths. Yellow fever appears to be on the rise internationally, due to a decreased immunity to infection among...
Young children infected with the virus usually
have no symptoms or only mild symptoms.
If a person is first
infected with the virus as a teen or young adult, he or she is likely to
develop symptoms of mono.
Johannsen EC, Kaye KM (2010). Epstein-Barr virus
(infectious mononucleosis, Epstein-Barr virus-associated malignant diseases, and other diseases). In GL Mandell et al., eds., Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases, 7th ed., vol. 2, pp. 1989–2010. Philadelphia:
Churchill Livingstone Elsevier.
Primary Medical Reviewer
E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer
W. David Colby IV, MSc, MD, FRCPC - Infectious Disease
July 28, 2011
WebMD Medical Reference from Healthwise
July 28, 2011
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