Non-Adjuvanted A(H1N1) Influenza Vaccine

**Semantic type:** Immunologic Factor|Pharmacologic Substance

**Definition:** A monovalent vaccine containing hemagglutinin (HA) of influenza A (H1N1)-like virus with potential immunomodulating activity. Upon administration, non-adjuvanted A(H1N1) influenza vaccine may stimulate the immune system to mount an antibody response against H1N1.