Immunoglobulin A, SecretorySecretory ComponentImmunoglobulin ALacrimal ApparatusHIV EnteropathySalivaImmunoglobulin MImmunoglobulin GImmune SystemImmune ToleranceImmunity, InnateImmune EvasionAntigen-Antibody ComplexImmune SeraImmunity, CellularT-LymphocytesMice, Inbred C57BLImmunityMice, Inbred BALB CCytokinesImmune Complex DiseasesImmune System DiseasesLymphocyte ActivationAntibody FormationSpleen