My Viral Capsid IGM Was Negative, But My IGG Was

Posted on Fri, 3 May 2019

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Fri, 3 May 2019 Answered on

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Question : My viral capsid IGM was negative, but my IGG was 403. The confusing part is that my EBNA was in the 300s. I had the test done after being sick and then having a lingering sore throat for 2 weeks. Strep test was negative. Sore throat and swollen gland(s) persisted up until a day or two ago which is a month from when I initially became sick with what I thought was a cold virus. I am tired. But not excessively and never had any known spleen or liver issues. Do I have mono currently or recently or are the test more indicative of past infection? I am 48 years old.

Answered by Dr. Dr. Rajat Basak (1 hour later)

Brief Answer:
Hii. IgM is the indicative of recent infection. It is high when one get inf

Detailed Answer:
Hii. IgM is the indicative of recent infection. It is high when one get infected recently. IgG is the antibody which body will produce after you get the immunity. So high IgG is indicative of immunity against viral infection.

Above answer was peer-reviewed by : Dr. Yogesh D

Follow up: Dr. Dr. Rajat Basak (53 minutes later)

So my doctor diagnosed me with mono 2 weeks ago. Are you saying you don't think I have a current case of mono based on my lab results?

Answered by Dr. Dr. Rajat Basak (21 hours later)

Brief Answer:
Hii. If you are having high IgM then it is recent infection but if you are

Detailed Answer:
Hii. If you are having high IgM then it is recent infection but if you are having high IgG then it is the past infection that has given u immunity. May be you are having infectious mononucleosis due to recent infection but already you are immuned to it.

Above answer was peer-reviewed by : Dr. Yogesh D