vaccine ingredient
... that an immunologic adjuvant is a vaccine ingredient that makes the immune response stronger and longer-lasting?
... that an <a href="./Immunologic_adjuvant" id="mwArg" rel="mw:WikiLink" title="Immunologic adjuvant">immunologic adjuvant</a> is a <b id="mwArk"><a href="./Vaccine_ingredients" id="mwAro" rel="mw:WikiLink" title="Vaccine ingredients">vaccine ingredient</a></b> that makes the immune response stronger and longer-lasting?