Table of Contents
What is a positive rubeola titer?
A positive result generally indicates exposure to measles virus or previous vaccination. A positive result is considered adequate laboratory evidence of measles immunity.
What is the normal range for rubeola IgG antibody?
Reference Range: IgG: 13.4 AU/mL or less: Negative – no significant level of detectable measles (rubeola) IgG antibody. 13.5 – 16.4 AU/mL: Equivocal – repeat testing in 10-14 days.
How do you read MMR titer results?
< or = 0.90 Negative 0.91-1.09 Equivocal > or = 1.10 Positive A positive result indicates that the patient has antibody to mumps virus. It does not differentiate between an active or past infection. The clinical diagnosis must be interpreted in conjunction with the clinical signs and symptoms of the patient.
What is a normal rubella titer?
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 is the normal range for rubella IgG and IgM?
Reference Interval
| 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 normal range of measles antibodies?
0.8 AI or less: Negative – No significant level of detectable measles (rubeola) IgG antibody. 0.9-1.0 AI: Equivocal – Repeat testing in 10-14 days may be helpful. 1.1 AI or greater: Positive – IgG antibody to measles (rubeola) detected, which may indicate a current or past exposure/immunization to measles (rubeola).
How do you read rubella IgG results?
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.
- 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.
How do you read a titer?
The greater the concentration of the specific antibody in the serum sample, the higher the titer. For example, a titer for an influenza hemagglutination inhibition assay of 1:10 would be very low; a titer of 1:320 would be high. A low or undetectable titer indicates very little antibody present in the serum.
What are positive titers?
If your titers are positive, it may indicate you’ve already been exposed to a specific pathogen or may have received the vaccine for it. That means that you have adequate immunity to a particular infectious disease. If titer results are negative, this means there is no immunity to a specific disease.
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.
How do you read rubella report?
What the Results Mean
- 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 if rubella IgG is high?
Positive: 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.
What is rubeola antibody IgG?
The presence of detectable IgG-class antibodies indicates prior exposure to the measles virus through infection or immunization. Individuals testing positive are considered immune to measles infection.
What is high rubella antibodies?
The results of rubella antibody testing may be reported as follows: Detected, positive, or immune: Sufficient antibodies are present in the sample to indicate current infection, prior infection, or vaccination and subsequent immunity.
What means if rubella IgG positive?
Positive: 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: This means you are not immune to rubella.