Blood tests are available for people who may not have had symptoms or if the signs have already healed. Unlike IgM, IgG antibodies can be accurately broken down to either HSV-1 or HSV-2. For one person, it could take just a few weeks, while it could ta ke a few months for another. However, since most cases of genital herpes are caused by HSV-2, a positive result for type-2 antibodies most likely indicates genital herpes. Now keep in mind that most people with herpes are unaware they have been infected because most people don’t get recurrent cold sores on their lips or genitals, most people have a silent infection and simply periodically shed the virus. 2) Blood tests take 3-6 months to turn positive after exposure because it takes 3-6 months for your body to make IgG antibodies in response to an infection. 1 and negative for 2 that does not mean you don’t have genital herpes. So, if you have an ulcer or lesion, always insist on lab testing in addition to an exam. It needs to be followed up in 2-4 months with a blood test to verify a true negative. HerpeSelect tests currently are the most accurate tests available for most physicians.
The window period is the time between infection with HSV and when the virus shows up in a blood test. Most HSV blood test results are accurate after 4 months. Sexual health information on genital herpes, an infection caused by either the Type 1 (HSV-1) or Type 2 (HSV-2) herpes simplex virus. There are three main laboratory methods to diagnose the virus: culture, PCR, and blood tests for antibodies, although false negative results are possible. Depending on the person and the type of test, it can take from 3-4 weeks to four months after exposure to HSV for antibodies to be detected in the blood. I requested std testing through my gyn 3 months post possible exposure.
The accurate testing for type 2 herpes simplex virus detect IgG antibodies using a method called ELISA (enzyme-linked immunosorbent assay). If the IgG test is negative, and at least six months have passed from time of possible infection, you don t have herpes. Most of the false positive results occur with index values between 1.1 and 3.5. A serum herpes simplex antibodies test checks for antibodies to the herpes simplex virus. Herpes can appear in various parts of the body, but it most commonly affects the genitals or mouth. A healthcare provider will take a blood sample by doing the following:. However, it’s possible for your results to come back negative even if you’ve been infected within the past few months. Question: How long do I have to wait before a herpes blood test is accurate? Blood tests for HSV-2, the virus that is most often associated with genital herpes, generally look for the presence of antibodies to the virus. The truth is, it’s even longer than those numbers above. Therefore, it’s probably a good idea to wait at least a month or two before even considering getting an HSV-2 test after a potential exposure.
What Is The Accuracy Of The Blood Test For Someone With HSV
Oral herpes is most commonly transmitted by kissing or sharing drinks or utensils, but can also be contracted from a partner with genital herpes during oral sex. Accurate 99 percent of the time because once infected, antibodies are always present, whether you are having an active outbreak or not, so this test can be done at anytime. Blood test; The blood sample will be sent to a laboratory for analysis. The test uses a blood sample, so there is no uncomfortable swabbing or undressing. If you test negative, it is advisable to test again in three months to confirm the initial test results. For the most accurate results, it is recommended to wait 4-6 weeks after exposure to test for genital herpes. I waited 3 months to take the full STD panel test which included herpes select type specific and everything came back negative. I took the test again from a different place 3 months later and still the same results. It is more sensitive for HSV 1 than the screening test by a lot. 3. How accurate are the blood tests for herpes? Six months ago, I sat waiting in my gynecologist’s exam room chair, fully clothed and wishing I were anywhere else. I called the lab to see what had happened to my test. Both of my blood tests for HSV-1 and HSV-2 were negative. HSV-2 is almost always genital, which makes things much more simple. But HSV-1 blood tests are far less reliable. HSV-2 rarely infects oral tissue, though, and a blood test positive for HSV-2 typically indicates that an individual has genital herpes, even if they’ve never experienced symptoms. For one person, it could take just a few weeks, while it could take a few months for another. For the most accurate test result, it is recommended to wait 12 – 16 weeks from the last possible date of exposure before getting an accurate, type-specific blood test in order to allow enough time for antibodies to reach detectable levels. Since most people with genital herpes have few, infrequent or even NO noticeable symptoms, it can be difficult to know whether or not you have genital. Many out-of-date doctors will tell you that there are no reliable blood tests for herpes that can accurately distinguish between HSV-1 and HSV-2. Most tests will not give accurate results unless you have had the virus for sufficient time for the markers of the antibodies to show up in your bloodstream.
Test For Herpes: Igg Blood Test
Should You Trust A Blood Test To Detect Herpes? In case of some persons, it may be detected for months, while for the others, it might take a few months to get detected. If a person has positive results for HSV 1, he might be carrying it in the mouth, in the genital or in both positions. Most people with HSV do not have symptoms but can still transmit the virus to their partner through skin contact with an infected area. Both men and women may be tested with a urine sample. Blood Tests for Herpes Simplex HSV1 & HSV2. Herpes blood tests do not look for the virus itself, they look for the antibody to the herpes virus antibodies being our body’s response to fight an infection. Short answer: 16.2 of Americans ages 14-49 have genital herpes. A blood test (aside from it taking around 3 months for herpes antibodies to build to detectable levels) will simply tell you if you have HSV-1 or HSV-2 (or both).