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A 46-year-old female asked:

I had a sars-cov-2 semi-quant igg ab test done with labcorp, the reference range is neg less than 13.0 and my results are 48.6 au/ml units. what does this mean? i know i tested positive for antibodies but is that a good number for protection?

2 doctor answers3 doctors weighed in
Dr. Amrita Dosanjh
Pediatric Allergy and Asthma 38 years experience
Antibody levels do not always correlate with protection level. The test indicates that you have produced antibodies against SARS CoV2. A booster is recommended. A flu vaccination is indicated.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Gurmukh Singh
Pathology 51 years experience
If you did not get Covid vaccination , get it, if you did, get a booster dose. The test done does not measure neutralizing antibodies and is not good at predicting protection. Get Flu vaccine as well.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Dec 12, 2021
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