{"id":7321,"date":"2026-06-11T10:14:02","date_gmt":"2026-06-11T07:14:02","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/adjuvant\/"},"modified":"2026-07-23T14:04:56","modified_gmt":"2026-07-23T11:04:56","slug":"adjuvant","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossaire\/adjuvant\/","title":{"rendered":"Adjuvant"},"content":{"rendered":"\n

L’adjuvant (du latin adjuvans<\/em> \u2014 aidant, soutenant) est un composant pharmacologique sp\u00e9cifique ajout\u00e9 \u00e0 certaines vaccins modernes. Sa principale fonction est d’amplifier la r\u00e9ponse immunitaire de l’organisme face \u00e0 l’antig\u00e8ne vaccinal administr\u00e9.<\/p>\n\n

\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n

Historiquement, les premiers vaccins \u00e9taient fabriqu\u00e9s \u00e0 partir de microbes entiers, bien que tu\u00e9s. Ils \u00e9taient r\u00e9actog\u00e8nes mais fournissaient une forte immunit\u00e9 car ils contenaient de nombreux ‘signaux de danger’ naturels.<\/p>\n\n

Les vaccins modernes sont maximaux s\u00e9curis\u00e9s. Ils contiennent :<\/p>\n\n

    \n
  • composant actif<\/strong> \u2014 virus att\u00e9nu\u00e9s, microorganismes tu\u00e9s, leurs parties (prot\u00e9ines, sucres) ou mat\u00e9riel g\u00e9n\u00e9tique ;<\/li>\n\n\n\n
  • divers agents auxiliaires<\/strong>, <\/strong> parmi lesquels figurent les adjuvants.<\/li>\n<\/ul>\n\n

    L’adjuvant renforce l’immunit\u00e9 locale (sert de sir\u00e8ne chimique qui attire un grand nombre de cellules du syst\u00e8me immunitaire au site d’injection), permettant ainsi d’employer des doses plus faibles d’antig\u00e8nes dans le vaccin.<\/p>\n\n

    Importance clinique<\/strong><\/h2>\n\n

    Les adjuvants les plus couramment utilis\u00e9s sont les sels d’aluminium (hydroxyde ou phosphate).<\/p>\n\n

    Les effets ind\u00e9sirables apr\u00e8s la vaccination (\u0153d\u00e8me, rougeur, induration et douleur au site d’injection) sont souvent dus \u00e0 l’infiltration de l’adjuvant dans le tissu adipeux sous-cutan\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"

    L’adjuvant (du latin adjuvans<\/em> \u2014 aidant, soutenant) est un composant pharmacologique sp\u00e9cifique ajout\u00e9 \u00e0 certaines vaccins modernes. Sa principale fonction est d’amplifier la r\u00e9ponse immunitaire de l’organisme face \u00e0 l’antig\u00e8ne vaccinal administr\u00e9.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-7321","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"\nAdjuvant : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"L'adjuvant (du latin adjuvans \u2014 aidant, soutenant) est un composant pharmacologique sp\u00e9cifique ajout\u00e9 \u00e0 certaines vaccins modernes. 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