IgM antibodies to Mycoplasma pneumoniae

IgM antibodies are the first type of antibodies produced by the immune system in response to an acute infection. When IgM against Mycoplasma pneumoniae is present, it typically indicates a recent or ongoing infection. These antibodies appear within 1–2 weeks of exposure and usually decline after a few months. Testing for IgM is useful in identifying the early phase of a Mycoplasma pneumoniae infection, especially in symptomatic individuals.

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What does a positive IgM result signify?

It indicates a recent or current infection with Mycoplasma pneumoniae.

Can IgM be raised in individuals without symptoms?

Yes, especially in the early stages of infection or if symptoms are mild or atypical.

How soon after infection do IgM antibodies appear?

Typically within 1 to 2 weeks after exposure.

Can IgM remain raised after the infection has cleared?

It may persist for weeks or several months even after symptoms have improved.

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Content
What does a positive IgM result signify?
Can IgM be raised in individuals without symptoms?
How soon after infection do IgM antibodies appear?
Can IgM remain raised after the infection has cleared?
What does a positive IgM result signify?
Can IgM be raised in individuals without symptoms?
How soon after infection do IgM antibodies appear?
Can IgM remain raised after the infection has cleared?
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