posted
Would someone please explain the difference b/w IgG and IgM?
Is a positive IgG more indicative of chronic Lyme?
Thank you!
Posts: 89 | From Northern Virginia | Registered: Oct 2005
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johnnyb
Frequent Contributor (1K+ posts)
Member # 7645
posted
I believe the way it works is that IGM is the first response to infection, indicating an active infection. You develop these antibodies early on (few weeks?)
IGG antibodies form later on, after you've had the infection awhile. If you've never been tested / treated, I would assume that a positive IGG would indicate a chronic condition, if symptoms are present.
Best to discuss with your doctor, of course.
- JB
Posts: 1197 | From New Jersey | Registered: Jul 2005
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SForsgren
Frequent Contributor (1K+ posts)
Member # 7686
posted
Not really correct. With Lyme, you throw the IgG and IgM rules out the door. They tell you nothing about how current the infection is. They will cycle back and forth back and forth.
With most virus, etc., the explanation above is correct, but with Lyme, it is unfortunately not.
-------------------- Be well, Scott Posts: 4617 | From San Jose, CA | Registered: Jul 2005
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