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A 37-year-old female asked:

Hello. i had blood work up done. one of the test were for covid antibodies. sars cov 2 igg and sars cov 2 igm. i tested positive for the sars cov 2 igm test . negative on the igg. does that mean i was covid positive when i had the blood work ?

1 doctor answer • 1 doctor weighed in
Dr. John Berryman
Dr. John Berrymananswered
Obstetrics and Gynecology 56 years experience
Igg tests will show an early response to a given antigen (like "sars cov 2", and Igm testing shows a later production of antibodies. It is likely that at the time of testing you were already "positive", as a negative Igg test with a positive Igm test implies a "covid positive" prior to the testing done.
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Answered Jul 01, 2022
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Last updated Jul 1, 2022

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Blood›COVID-19›Immunoglobulin M

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