Yes, you may be infected with both the varicella-zoster virus that causes shingles and the herpes simplex virus that causes herpes at the same time.
What causes a false positive HSV-2 test?
A person who only has HSV-1 may receive a false positive for HSV-2. IgM tests sometimes cross-react with other viruses in the same family, such as varicella zoster virus (VZV) which causes chickenpox or cytomegalovirus (CMV) which causes mono, meaning that positive results may be misleading.
Are shingles and HSV related?
Shingles and herpes both develop due to herpesviruses. However, shingles occurs as a result of VZV, while herpes develops due to HSV-1 and HSV-2. Both viruses are able to lie dormant within the body and flare up. Shingles typically only flares up once in a lifetime, while herpes can reoccur often.
How often is HSV-2 false positive?
In a 10,000-person population with a 15% prevalence of HSV-2, screening would result in approximately 1,585 true-positive and 1,445 false-positive results.
Can shingles cause a positive HSV-2 Related Questions
Can I be misdiagnosed with HSV-2?
False positive test results show that a person has an infection or condition when they do not. This can happen with many kinds of diagnostic tests. However, the chance of a false positive herpes test result is much higher than when testing for STIs like chlamydia or gonorrhea.
How accurate is the blood test for HSV-2?
Blood tests have a sensitivity of about 80-98% for HSV-2.
Can you have HSV-2 antibodies and not be infected?
It is possible to have a false-positive result for herpes antibodies. This means that a person gets a positive result when they do not have the virus.
Can HSV-2 antibodies go away?
It may take between six and eight weeks to detect antibodies in a herpes blood test after first becoming infected with HSV. Also, antibodies may disappear with time, especially if the person has infrequent recurrences of herpes.
Is having HSV-2 a big deal?
Overall Health Genital herpes is essentially a minor, sometimes recurring, skin infection; ‘cold sores’ which occur on the genitals rather than the face. It does not cause long-term ill health or affect longevity of life. People who get genital herpes can and do lead perfectly normal lives.
What can shingles be mistaken for?
It’s easy to mistake a shingles rash for another health condition that affects the skin. The shingles virus typically causes a painful rash and blisters, which can resemble many other skin conditions ‚Äî psoriasis, eczema, and hives among them.
What virus is related to shingles?
Shingles is caused by varicella zoster virus (VZV), the same virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant (inactive) in their body. The virus can reactivate later, causing shingles. Most people who develop shingles have only one episode during their lifetime.
How do you know if you have internal shingles?
Because the condition’s characteristic rash is not apparent in internal shingles, doctors rely on testing to confirm the presence of the virus. If your doctor suspects you have internal shingles, they’ll use a polymerase chain reaction (PCR) saliva test to check for the presence of viral DNA.
Can you test positive for HSV-2 if its dormant?
If you have the herpes virus and your body has produced antibodies, it can be detected on a blood test, even if you have no symptoms. The only time the virus might not be detected on a test (after you’ve contracted it) is if you’ve been tested too early.
When is HSV-2 test conclusive?
The HerpeSelect¬Æ Herpes Type 2 Test is 97 to 99 percent accurate between four to six weeks post-exposure and remains 99 percent accurate after 6 weeks post-exposure. It’s important to wait at least four weeks after exposure, because it takes time for the body to develop antibodies that are detected by a blood test.
What is the range for a negative HSV-2 test?
Although CLIA tests are reliable, “false positives” are possible due to the low occurrence of the HSV-2 virus in some populations. Test results for herpes fall within a numeric range. If your test returns a value of 0.91 or below you are negative. A value of 1.09 or above is a positive.
What mimics HSV-2?
Genital herpes can cause genital sores (but not always) and can be confused with other conditions such as syphilis, genital warts (HPV), chancroid, Lymphogranuloma venereum, bacterial vaginosis, yeast infection, irritation from shaving, ingrown hairs, pimples, molluscum contagiosum, and others.
What is the most reliable HSV-2 test?
PCR test: The PCR test can tell if you have genital herpes even if you don’t have symptoms. The PCR test looks for pieces of the virus’s DNA in a sample taken from cells or fluids from a genital sore or the urinary tract. This is a commonly used test to diagnose genital herpes and is very accurate.
Can you test positive for HSV-2 without an outbreak?
If your test result is positive, it can mean that you have an active herpes infection without symptoms. It can also mean that you had an HSV infection in the past. The antibody blood test is not as reliable as culturing a sample from a herpes sore.
Why don t doctors test for HSV-2?
The rationale is that there is no health benefit that’s been proven and there [are] a couple of risks,‚Äù Dr. Johnston says. ‚ÄúOne is a false positive test, and the second is a risk of anxiety‚Ä¶ [Herpes] is not associated with serious health outcomes, yet it’s still feared.‚Äù
How long does HSV-2 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‚Äì28 days after exposure to the infection and probably lasting for life.7‚Äì,9 IgM antibodies are usually detectable 9‚Äì10 days after exposure and last 7‚Äì14 days, …