The results of the Rubella IgG test are reported as either positive or negative. A positive result indicates the presence of IgG antibodies against the rubella virus, suggesting either a past infection or immunity due to vaccination. A negative result means that no detectable IgG antibodies against rubella are present. This could indicate that a person has not been previously exposed to the virus or has not developed a sufficient immune response. In such cases, susceptibility to rubella infection may be higher.
If the test result is positive, it typically means that a person has either been previously infected with the rubella virus or has received a rubella vaccine. IgG antibodies persist in the blood for an extended period, providing long-term immunity against the virus. This is important, especially for women of childbearing age, as immunity to rubella helps protect against congenital rubella syndrome, a severe condition that can occur when a pregnant woman becomes infected with rubella.