This test is also an ELISA Antibodies test and is generally performed to detect either a Recent or a Remote exposure to the Herpes-1 and/or Herpes-2 viruses.
Herpes IgM antibodies are the first
to appear within a few days from exposure to the virus, reach a peak level
within 2-4 weeks and slowly disappear within two-three months. IgM Antibodies
are not type specific but they always indicate an heightened immunologic
activity in
response to antigenic challenge.
They may be increased during a reactivation of an old Herpes infection and/or in
the presence of antigenic material similar to Herpes, such in the case of CMV,
Mono and Chicken Pox viruses, a situation is called "cross-reactivity".
IgG antibodies type specific may appear within 3-4 weeks and are definitely present four months after exposure. They remain present indefinitely as
immunological memory of a past infection. Therefore the exposure date is the
time zero or starting point where to start orienting oneself in the
understanding of Herpes Serological dynamics.
80% of people who tested positive to either Herpes 1 or 2 antibodies were unaware of the infection. If the exposure date is not known a screening test for both the IgM and IgG antibodies is appropriate. The testing time can than be used as a starting point in the Herpes testing.
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Tests Results
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General Interpretation
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IgM Negative
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IgG Positive
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Remote infection
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IgM Negative
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IgG Negative
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No antibodies present
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IgM Positive
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IgG Positive
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Acute infection or reactivation of old infection
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IgM Positive
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IgG Negative
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Recent infection
or cross-reactivity - Must confirm with IgG after 3 months
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