Delayed Type Hypersensitivity to Bovine Serum Albumin and to Lipid-Conjugated Bovine Serum Albumin in Mice

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Abstract
Delayed type hypersensitivity (DTH) to bovine serum albumin (BSA) and to lipid-conjugated BSA were studied comparatively. Unlike the case of BSA with which no DTH can be detected with native antigen, injection of butyric-conjugated BSA (Bu-BSA) in sensitized mice provokes a typical DTH for an early and limited period. Alum-precipitated Bu-BSA (Al-Bu-BSA) provokes from the beginning a stronger DTH which persists a much longer period.