NicVax
...that NicVax causes an immune response that prevents nicotine from reaching the brain?
...that <b id="mwA0w"><a class="mw-redirect" href="./NicVax" id="mwA00" rel="mw:WikiLink" title="NicVax">NicVax</a></b> causes an <a href="./Immune_response" id="mwA04" rel="mw:WikiLink" title="Immune response">immune response</a> that prevents <a href="./Nicotine" id="mwA08" rel="mw:WikiLink" title="Nicotine">nicotine</a> from reaching the <a href="./Brain" id="mwA1A" rel="mw:WikiLink" title="Brain">brain</a>?