absolution acquired immunity active immunity amnesty antibody antigen artificial immunity assurance blank check carte blanche charter clear sailing congenital immunity copyright diplomatic immunity discharge dispensation exception exclusion exculpation excuse exemption exoneration familial immunity favor franchise freedom grace grant harmlessness immunity theory immunization immunization therapy immunochemistry immunology immunotherapy impunity indemnity indulgence inherent immunity inherited immunity inoculation insusceptibility invulnerability legislative immunity liberty license natural immunity nolle prosequi non prosequitur nonprosecution nonspecific immunity nonsusceptibility to disease opsonic immunity pardon passive immunity patch test patent permission phagocytic immunity privilege protection racial immunity redemption release remission remission of sin reprieve resistance risklessness safeguard safeness safety scratch test security serotherapeutics serotherapy serum therapy shrift side-chain theory sparing special favor specific immunity stay surety toxin-antitoxin immunity toxin-antitoxin immunization tuberculin test unsusceptibility vaccination vaccine therapy vaccinotherapy warrant