An agent containing @A00394@ produced from killed, attenuated or live pathogenic microorganisms, synthetic @P04479@ or by recombinant organisms, used for stimulating the immune system of the recipient to produce specific @A00384@ providing active immunity and/or passive immunity in the progeny.
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 167 [Terms] [Paper]