At Herpes Simplex Igg?

An immunoglobulin G (IgG) blood test is used in the diagnosis of herpes simplex virus (HSV) infection. This test does not detect the virus—it detects the antibodies (immune proteins) that your body produces in response to the viral infection.

How accurate is IgG herpes test?

The IgG test is about 94% accurate in detecting the infection. About 19% of the time, its results are false positive (that is, the test is positive for herpes infection when the person does not have herpes). By contrast, the herpes IgM antibodies tests give almost 50% false-negative results.

How long does HSV IgG stay positive?

The time required for the development of IgG antibodies following HSV infection varies from 21 to over 42 days with most individuals having detectable IgG 21–28 days after exposure to the infection and probably lasting for life.^7–,⁹ IgM antibodies are usually detectable 9–10 days after exposure and last 7–14 days, ...