An antigen is any substance that causes your immune system to produce antibodies against it.

In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.

Panodyne Covid-19 Rapid Antigen Test. Box of 24

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