Causes of False-Positive Results for Rubella Virus
Disease description:
Previously tested positive for rubella virus, but the results were different upon retesting. I would like to know which factors can cause false-positive results in rubella virus testing?
Doctor's answer (1)
Dr. Liu Wenmin
A false positive result in rubella virus antibody testing may be caused by factors such as immunosuppression, improper procedures, or infections.
Reduced immune function may lead to an ineffective clearance of the rubella virus, resulting in the production of nonspecific antibodies in the blood and causing a false positive. In such cases, it is recommended to improve immunity through medications such as thymopentin enteric-coated tablets or recombinant human interleukin-2 for injection. Laboratory errors or poor-quality reagents may also lead to nonspecific reactions and false positive results.
Recent infection with other pathogens, autoimmune diseases, or malignant tumors may also lead to false positive results in rubella virus testing. For such cases, patients are advised to seek timely medical consultation, complete relevant examinations to identify the exact cause, and receive appropriate treatment.
When interpreting rubella virus antibody test results, clinical information and laboratory testing details should be considered comprehensively. Re-testing or using alternative testing methods for confirmation may be necessary. In daily life, maintaining clean and hygienic skin is recommended to aid recovery.
