IgM

American  

Immunology.

1. immunoglobulin M: a class of short-term circulating and secretory antibodies existing as an aggregate of five antibody molecules, having a high affinity for viruses.

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IGM British  

abbreviation

1. International Grandmaster

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Etymology

Origin of IgM

First recorded in 1960–65

Example Sentences

These differences have led scientists to wonder how a fish creates a stable IgM and how it functions.

From Science Daily

Those who received an inconclusive positive IgM antibody test can still obtain a health QR code if they’ve received a Chinese vaccine, according to the new guidelines.

From Washington Post

None of the babies in this study were found to have immunoglobulin M, or IgM, antibodies, which are typically only detected soon after an infection, suggesting that the babies hadn’t been infected with the coronavirus.

From New York Times

Another concern, Dr. Theel said, is that IgM tests can also be very difficult to find.

From New York Times

IgM antibodies mobilize against the virus, then begin to disappear in the months that follow.

From Scientific American