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Doctor insights on: Herpes Ig G False Positive

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Herpes' IGG result 17.40 at 5th week after exposure - can one get that high result? Or could it be false positive? Should I rest to confirm? When?

Herpes' IGG result 17.40 at 5th week after exposure - can one get that high result? Or could it be false positive? Should I rest to confirm? When?

Need more info: You don't mention which Herpes virus you were exposed to and what the exposure was. The high IgG titer may be correct. Many adults have IgG antibodies to Herpes simplex virus type 1, with or without overt infection. Most, but not all, genital infections are due to Herpes simplex type 2. However, type 1 can cause genital infections as well. ...Read more

Herpes (Definition)

There are different types of herpes infections; herpes simplex infection of mouth (gingivostomatitis) and lips (labialis) are the most common. Others include genital herpes, and herpes zoster. Herpes infection could very mild to very dangerous depending on the type and location of the body affected. I ...Read more


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If I had a positive IgG herpes blood test but never had Symptoms Why would the doctor tell me it is probably a false positive? Did he cross reference?

If I had a positive IgG herpes blood test but never had Symptoms Why would the doctor tell me it is probably a false positive? Did he cross reference?

It depends...: This depends on details you don't mention. If definitely positive (e.g., if you had a HerpeSelect IgG test and the HSV2 value is 3.5 or higher), it's not false positive: you are infected with HSV2. Lower numbers can be false positive, however. For HSV1, false positive are very rare; if positive, you're infected. ...Read more

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Chances of having a false positive herpes type 1 blood test? 9.1 igg. While other STDs remain negative 0.0 igg. Had my test 2 weeks later after exposure.

Chances of having a false positive herpes type 1 blood test? 9.1 igg. While other STDs remain negative 0.0 igg. Had my test 2 weeks later after exposure.

True positive, but: As pointed out, many adults are positive for Herpes simplex type 1 by adolescence. New IgG antibodies usually ae being produced by day 10 after exposure, may not be detectable until 3 weeks, occasionally later. Particularly diseases such as syphilis and HIV may not be positive at 2 weeks. You should be retested at 4 weeks. HIV ...Read more

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Is lab results always right? Had hsv1 many times results say hsv1 IgG >5.00 but hsv2 IgG says 1.25 can there be false positive for hsv2?

Is lab results always right? Had hsv1 many times results say hsv1 IgG >5.00 but hsv2 IgG says 1.25 can there be false positive for hsv2?

False + can occur: Especially if you are positive for HSV1 there can be a false positive for HSV2. Ask your doctor to order a Western Blot test for HSV2 - that is the gold standard test. If that is negative, then you can be sure that you do not have HSV2. ...Read more

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Could having a flu or cold when your blood is drawn cause a false positive on a Hepatitis A IgM test? Igg was negative.

Could having a flu or cold when your blood is drawn cause a false positive on a Hepatitis A IgM test? Igg was negative.

Very possibly: As you know, the hepatitis A IgM antibody tests for recent infection. False positives may result due to the presence of cross-reactive antibodies from other viral infection or underlying illnesses. Depending on the circumstances and time of exposure, retesting should be considered. Best wishes:) ...Read more

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If v. Zoster IgG positive, that means you have herpes?

If v. Zoster IgG positive, that means you have herpes?

Varicella-zoster: Vz is the causative agent of chickepox which can recur later in life as shingles (herpes zoster). Herpes simplex is a completely different virus with different disease producing capacities. ...Read more

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Does herpes type1 IgG possitive contagious with out outbreaks?

Does herpes type1 IgG possitive contagious with out outbreaks?

Some viral shedding: Although the chance of transmission is highest during an active outbreak, there is still a very small chance of transmitting/spreading the infection without outbreak as some viral shedding occurs all the time. If you have frequent outbreak, consult your doc for suppressive treatment as there are quite a few options available these days. Good luck. ...Read more

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I tested positive for herpes II IgG on june, I got tested again in august and it came back negative, am I positive or negative? No symptoms here.

I tested positive for herpes II IgG on june, I got tested again in august and it came back negative, am I positive or negative? No symptoms here.

Herpes Two: The right answer, and I am sorry if your doctor did not offer this, is to have a 'western blot' test for herpes. I often send for a 'confirmatory' western blot test when the antibody titers are very close to 'negative' on herpes type two screening tests. ...Read more

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Is it possible to be IgG positive for herpes 8 weeks after exposure?

Is it possible to be IgG positive for herpes 8 weeks after exposure?

IgG mature antibody: Yes, but surprising. If you have no other blood test history then we cannot really tell you that an exposure eight weeks is the one that infected you. Igg antibodies are the mature antibodies and usually take more time. ...Read more

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Both husband and I ttested positive for herpes 1 IgG and herpes 2 indeterminate, igg. What does that mean? Who is the carrier? How do u get herpes

Both husband and I ttested positive for herpes 1 IgG and herpes 2 indeterminate, igg. What does that mean? Who is the carrier? How do u get herpes

Herpes: Here is the best we can do today. If the igg is indeterminate then your physician must order the herpes western blot test. Knowing if you have hsv two if vital.

Herpes is two separate viruses. Type one, the 'oral' herpes or 'simplex' herpes is found in 75% of americans and is usually transmitted to one during childhood.

Herpes type two or hsv is thought to be the std version. Skin to skin. ...Read more

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How long does an IgG blood test take to turn positive for herpes after a possible exposure?

Antibody Aging: It can take six to twenty four weeks. There is an early antibody that can be tested as well and that is an igm antibody. ...Read more

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My test is positive for herpes 1 and negative for herpes 2 (all igg) but also positive IgM herpes too. Would you say I have type 1 or 2?

My test is positive for herpes 1 and negative for herpes 2 (all igg) but also positive IgM herpes too. Would you say I have type 1 or 2?

Both 1 and 2: Sounds like you have an acute infection with herpes 2. Igm indicated acute infection. The igg will become positive with time. A positive igg for herpes 1 indicates prior exposure to herpes 1. ...Read more

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I only have positive IgM herpes results. When should I get retested to check for positive IgG levels?

It takes 4to6 weeks: During primary infection igg may be positive after 2 weeks but peeks at about 3to4weeks. ...Read more

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I had protected sex with my partner he has herpes no signs nor symptom. I did an IgG test few weeks after tested positive for hsv1&2 how is that?

I had protected sex with my partner he has herpes no signs nor symptom. I did an IgG test few weeks after tested positive for hsv1&2 how is that?

Herpes: This means in 100% certainty that you were exposed to herpes prior to this exposure from your partner.

Herpes infections do not necessarily have to be on the penis or in the vagina. Thus condoms do not protect against the skin to skin transmission of the herpes virus.

But, to have igg antibodies you have to have been exposed months before at least. ...Read more

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Am I herpes negative or positive? HSV 2, IgG result is 1/80 (Ref Range Negative is < 1/40), HSV I, IgG result is 1/80 (Ref Range Negative is < 1/40).

Probably yes, but...: I'm not familiar with HSV blood tests that give results as fractions or titers. With other tests (e.g. HerpeSelect®), any positive HSV1 result usually is valid, but weakly positive results (which is what I suspect is how to interpret your HSV2 result) often are false and require confirmation. In most countries, over half of adults are HSV1 positive, no big deal. But you'll need to clarify HSV2. ...Read more

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If you have ebv, are you likely to have high herpes simplex IgG positive?

If you have ebv, are you likely to have high herpes simplex IgG positive?

EBV: Both of these are herpes viruses and there may be some overlap in serologic expression, but having high igg titers due to ebv infection is very unlikely. ...Read more