Antifungal drug
Antifungal drug: A drug used to treat fungal infections.
Examples of antifungal drugs include miconazole (MONISTAT) and clotrimazole (LOTRIMIN, MYCELEX).
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- Antifungal medication
Antifungal medication: A drug used to treat fungal infections. Examples of antifungal drugs include miconazole (MONISTAT) and clotrimazole (LOTRIMIN, MYCELEX).
- Antigen
Antigen: A substance that the immune system perceives as being foreign or dangerous. The body combats an antigen with the production of an antibody.
- Antigen-antibody complex
Antigen-antibody complex: The complex formed by the binding of an antibody to an antigen. Antigen-antibody complexes initiate immune responses. Also known as an immune complex.
- Antigen-presenting cell
Antigen-presenting cell: A cell that can “present” antigen in a form that T cells can recognize it. The cells that can “present” antigen include B cells and cells of the monocyte lineage (including macrophages).
- Antigenic drift
Antigenic drift: A mechanism for variation by viruses that involves the accumulation of mutations within the antibody-binding sites so that the resulting viruses cannot be inhibited well by antibodies against previous strains making it easier for them to spread throughout a partially immune population. Antigenic drift occurs in both influenza A and influenza B viruses.