- A positive test is 1.0 or higher. That means you have rubella antibodies in your blood and are immune to future infection.
- A negative test is 0.7 or lower. You have too few antibodies to make you immune. If you have any, they can’t be detected.
What is the normal range of rubella IgG?
Reference Range:
7 IU/mL or less
: Negative – No significant level of detectable rubella IgG antibody. 8-9 IU/mL: Equivocal – Repeat testing in 10-14 days may be helpful. 10 IU/mL or greater: Positive – IgG antibody to rubella detected, which may indicate a current or previous exposure/immunization to rubella.
What level is rubella immune?
The Rubella Subcommittee of the National Committee for Clinical Laboratory Standards has proposed lowering the breakpoint to define rubella immunity from
15 to 10 IU/mL
. This recommendation stems from epidemiologic studies on vaccinated persons with low levels of antibody and anecdotal reports.
What do rubella test results mean?
A positive rubella IgG test result is good—it means
that you are immune to rubella and cannot get the infection
. This is the most common rubella test done. Negative: Less than 7 IU/mL IgG antibodies and less than 0.9 IgM antibodies. This means you are not immune to rubella.
What does rubella IgG antibody detected mean?
A positive rubella IgG test result is good—it means
that you are immune to rubella and cannot get the infection
. This is the most common rubella test done. Negative: Less than 7 IU/mL IgG antibodies and less than 0.9 IgM antibodies. This means you are not immune to rubella.
Why is my rubella IgG high?
Here’s how your IgG test results stack up:
A positive test is 1.0 or higher
. That means you have rubella antibodies in your blood and are immune to future infection.
How do you know if you are immune to rubella?
You are probably immune to rubella because you were vaccinated as a child or you had the illness during childhood.
A blood test
can tell if you’re immune to rubella. If you’re thinking about getting pregnant and aren’t sure if you’re immune, talk to your health care provider about getting a blood test.
What happens if rubella is high?
The developing baby (fetus) is most vulnerable to the virus at this time. If rubella is passed from a mother to her unborn baby, it can cause
miscarriage
, stillbirth, or congenital rubella syndrome (CRS), a group of serious birth defects that will permanently affect the child.
What does it mean when IgG is positive?
The presence of IgG suggests that the infection happened weeks to months in the past. It also suggests that you may no longer be infectious. IgG indicates that
you may have some immunity to the virus, though you may not
.
How long is rubella contagious?
A person with rubella may spread the disease to others up to one week before the rash appears, and remain contagious
up to 7 days after
. However, 25% to 50% of people infected with rubella do not develop a rash or have any symptoms, but they still spread it to others.
What is the normal range for rubella IgG and IgM?
| 19.9 AU/mL or less: Not Detected. | 20.0 – 24.9 AU/mL: Indeterminate – Repeat testing in 10-14 days may be helpful. | 25.0 AU/mL or greater : Detected – IgM antibody to rubella detected, which may indicate a current or recent infection or immunization. |
|---|
What is the effect of rubella on pregnancy?
Pregnant women who contract rubella are
at risk for miscarriage or stillbirth
, and their developing babies are at risk for severe birth defects with devastating, lifelong consequences. CRS can affect almost everything in the developing baby’s body.
What is a good IgG level for Covid?
Normal range: IgM 0.27–2.1,
IgG 6.7–15
, IgA 0.88–4.5 g/L. RDB = Receptor binding domain. Titers ≥4 are considered positive.
Does rubella cause infertility in females?
What is the Relation between Rubella Infection and Infertility? Since rubella infection is extremely dangerous for unborn babies,
women of childbearing age are advised to undergo rubella immunity testing before trying to conceive
. If immunity cannot be established, they are asked to be vaccinated.
How Rubella is caused?
What causes rubella? Rubella is
caused by a virus
. It is spread from person-to-person through droplets coughed or sneezed into the air by an infected person. Most outbreaks of rubella happen among young adults and adults who have not been vaccinated and have not had the disease before.
What does rubella look like?
The main symptom of rubella is a
red or pink spotty rash
. The rash takes 2 to 3 weeks to appear after getting rubella. The rash starts behind the ears and spreads to the head, neck, and body. The rash can be hard to see on dark skin, but might feel rough or bumpy.
