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IgM

IgM

1 7.4
The first antibody the body makes when it has a new infection
  • noun
  • /ˈaɪ dʒi ˈɛm/
  • Specialized
translation icon : IgM
  • During an immune response, the body initially produces IgM before creating other types of antibodies.
  • IgM antibodies
  • IgM test
  • IgM ELISA

Examples

  • The authors calculated the seroconversion rate by dividing the number of IgM-reactive chickens by the total number of chickens tested.

    Academic text (2006)
  • The cooler temperature in August 2004 coincided with the peak level of IgM seroconversions for EEE.

    Academic text (2006)
  • Cross-reactivity of IgM between the two species is limited and typically not observed.

    Academic text (2004)
  • Production of antibody, primarily IgM, is first noted during the next phase, the exponential phase.

    Academic text (2004)
  • The presence of sustained IgM against Hia suggests recent Hia exposure.

    Academic text (2015)
  • Samples with positive results were subsequently tested by ELISA for IgM against NiV.

    Academic text (2015)
  • Our patient had an IgG titer of >1:1,024 and an IgM of 1:80, indicating a previous exposure.

    Academic text (2004)
  • Complement, C3 and C4, and IgA, IgM, IgG were all within normal limits.

    Academic text (2007)
  • To detect acute CHIKV or DENV infections, we measured levels of IgM against CHIKV and DENV.

    Academic text (2012)
  • Acutely, patients produce IgM and IgG antibodies directed against the EBV capsid antigen.

    Academic text (1995)

Synonyms

immunoglobulin M
vsIgM
  • Specialized
6.3

An antibody found in the blood early in infection that fights germs and helps start longer protection

is the short abbreviation used in lab notes and charts

How Common

IgG
  • Specialized
2 5.7
IgA
  • Specialized
1 7.1
IgM
  • Specialized
1 7.4
IgE
  • Specialized
1 7.9
IgD
  • Specialized
9.6

Surface Forms

IgM singular
IgMs plural

Morphology

IgM = I + g + M

IgM is an initialism (acronym) for immunoglobulin M; its meaning cannot be derived from the individual letters by an average learner.

Etymology

IgM is short for immunoglobulin M, made from immune ('protected') and globulin ('a protein in the blood'), with M showing its type. Because IgM is the first antibody the body makes when it meets a new infection, a high level of IgM usually shows the infection is recent.