What does a low rubella titer mean?

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 titer for rubella?

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 does a negative MMR titer mean?

If your titer results do not show evidence of immunity, you will still be required to get any outstanding doses of the vaccine(s) as indicated above. NOTE: when reporting your titer results, remember that “positive” means “positive for immunity” and “negative” means “negative for immunity.”

What does a rubella titer of 1/10 mean?

Thus, we recommend that the patient with a low HAI titer (1 : 10) should be considered to have marginal immunity to rubella and should be vaccinated.

What is rubella antibody detected in pregnancy?

The presence of IgM antibodies means a current or recent infection. A person has been vaccinated against rubella. The presence of IgG antibodies means immunity received through either vaccination or a past infection. Health professionals who are in contact with pregnant women have had rubella.

What does a rubella titer of 1/8 mean?

An individual with an antibody titer of 1:8 or higher indicates prior infection with rubella virus, and immunity to primary infection. Therefore, a second specimen is not mandatory, but may be of interest in studies of the booster or reinfection phenomenon.

What level is immune for rubella?

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 is rubella IgG positive in pregnancy?

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.

When is rubella titer done in pregnancy?

The IgG rubella test is ordered when a woman is pregnant or is planning on becoming pregnant. It is ordered whenever a check for immunity against rubella is required. IgM and IgG rubella tests may be ordered when a pregnant woman has signs and symptoms that may indicate a rubella infection.

Can rubella cause miscarriage?

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.