Is a Serum Herpes Simplex Antibodies Test?
A serum herpes simplex
antibodies test is a blood test that checks for the presence of antibodies
to the herpes
simplex virus (HSV). HSV is a common infection that causes herpes. Herpes
can appear in various parts of the body, but it most commonly affects the
genitals or mouth. The two types of herpes infections are HSV-1 and HSV-2.
HSV-1, commonly known as oral herpes, usually causes cold sores
and blisters near the mouth and on the face. It’s spread through kissing or
sharing drinking glasses and utensils with an infected person. HSV-2 is typically
responsible for causing genital herpes. It’s generally transmitted through sexual
contact. HSV-1 and HSV-2 don’t always cause symptoms, and people may not know they’re
The serum herpes simplex antibodies test doesn’t actually check
for the HSV infection itself. However, it can determine whether someone has antibodies
to the virus. Antibodies are
special proteins that the body uses to defend itself against invading organisms
such as bacteria, viruses, and fungi. This means that most people who have been
infected with HSV will have the corresponding antibodies. The test can detect
antibodies for both types of HSV infections.
Your doctor may order a serum herpes simplex antibodies test if
they suspect you have an HSV infection. The results will determine whether you’ve
been infected with HSV. If you have the antibodies to HSV, then you will test
positive even if you don’t currently show any symptoms.
Why Is a Serum Herpes Simplex Antibodies Test
Your doctor may order a serum herpes simplex antibodies test to
determine whether you’ve ever been infected with HSV-1 or HSV-2. They may
suspect you have HSV if you’re showing symptoms. The virus doesn’t always cause
symptoms, but when it does, you may experience the following symptoms.
The symptoms of HSV-1 are:
- small, fluid-filled blisters around the
- a tingling or burning sensation around the mouth
- a fever
- a sore throat
- swollen lymph nodes in the neck
The symptoms of HSV-2 are:
- small blisters or open sores in the genital area
- a tingling or burning sensation in the genital
- abnormal vaginal discharge
- a fever
- muscle aches
- a headache
- painful urination
Even if you aren’t experiencing symptoms, the accuracy of the serum
herpes simplex antibodies test won’t be affected. Since the test checks for
antibodies to the virus, it can be performed even when the infection isn’t
causing a herpes outbreak. If you have ever been infected with HSV, you will continue to have antibodies to HSV in your blood for the rest of your life, whether you are having an outbreak or not.
What Can I Expect During a Serum Herpes Simplex
A serum herpes simplex antibodies test involves taking a small
sample of blood. A healthcare provider will take a blood sample by doing the
- They’ll first clean and disinfect the area with
- Then, they’ll wrap an elastic band around your
upper arm to make your veins swell with blood.
- Once they find a vein, they’ll gently insert the
needle into the vein. In most cases, they’ll use a vein on the inside of your
elbow. In infants or young children, a sharp instrument called a lancet may be
used to puncture the skin instead.
- The blood will be collected in a small tube or
vial attached to the needle.
- After they draw enough blood, they’ll remove the
needle and cover the puncture site to stop any bleeding.
- They’ll collect the blood onto a test strip or
into a small tube called a pipette.
- They’ll place a bandage over the area if there’s
- The blood sample will then be sent to a
laboratory to be tested for the presence of antibodies to HSV.
What Are the Risks of a Serum Herpes Simplex
The serum herpes simplex antibodies test doesn’t have any unique
risks. Some people may experience inflammation, pain, or bruising around the
puncture site. In rare cases, people develop an infection where the skin was
What Do My Test Results Mean?
A negative test result is considered normal. This generally means
that you’ve never been infected with HSV. However, it’s possible for your
results to come back negative even if you’ve been infected within the past few
months. This is referred to as a false
negative. Your body will usually take about 12-16 weeks after the exposure to form antibodies to the virus, so if you get an antibody test within this time period, you may have a false negative result despite being infected.
Additionally, you should be aware that there are two possible antibodies that your body can make to HSV-1 and HSV-2. These are IgM and IgG. IgM is the antibody that is made first, and typically represents a current or acute infection, although this may not always be the case. IgG is made after the IgM antibody, and typically will be present in the bloodstream for the rest of your life. The presences of IgG does not indicate a current infection, however. It only indicates that you have been exposed to HSV at some point in your life.
A positive test result for HSV-1 or HSV-2 indicates that you’ve
been infected with either virus at some point. The results also allow your doctor to differentiate between HSV-1
and HSV-2, which isn’t always possible by visually examining the sores. Depending
on your results, you and your doctor can discuss ways to treat and prevent the
spread of your HSV infection.