2/19/2012
What is the difference between a Herpes Simplex Virus (HSV) IgG and a Herpes Simplex Virus (HSV) IgM test?
What is the difference between a Herpes Simplex Virus (HSV) IgG and a Herpes Simplex Virus (HSV) IgM test?
If you Google for those you will find your answers without having to have others do your menial tasks for you.IgG and IgM are two kinds of antibodies your body produces in response to infection. Usually the IgM antibodies will show up first, followed by the IgG antibodies. The IgG antibodies will show up next, and those hang around for life- which is where you get lifetime immunity to some diseases. The IgM antibodies will disappear after a while, although they may show up again if the HSV reactivates. As a rule, IgM tests are not considered accurate for diagnosing Herpes. IgM antibodies are not really disease specific, and you can't tell if they are present because of an HSV 1 or 2 infection, current or previous. The IgM test can also read false positive in the presence of antibodies for other herpes viral family members- like chicken pox. It's more accurate to specifically test for HSV 1and/or 2 with an assay specifically for HSV IgG. Those tests tend to be quite accurate, within about a month of the onset of symptoms.The IgM tells you if it an initial infection. The IgG tells you if it was a previous infection.
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