|Description:||Magnified 49, 200x, this transmission electron micrograph |
(TEM) depicts numbers of cytomegalovirus virions that were
present in an unknown tissue sample.
Cytomegalovirus (CMV) is one of the herpesviruses. This group
of viruses includes the herpes simplex viruses (HSV), varicella-zoster
virus (VZV), which causes chickenpox and shingles, and Epstein-Barr
virus (EBV), which causes infectious mononucleosis, also known as
mono. CMV is a common infection that is usually harmless. Once CMV
is in a person's body, it stays there for life. Among every 100 adults in
the United States, 50–80 are infected with CMV by the time they are
40 years old.
Most healthy children and adults infected with CMV have no symptoms
and may not even know that they have been infected. Others may develop
a mild illness when they get infected and have the following symptoms:
fever, sore throat, fatigue, and swollen glands. But since these are also
symptoms of other illnesses, most people don't realize that they have
been infected with CMV.
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