... intraperitoneally (corresponding to 17.1 and11.4 mg/kg, respectively, on the basis of a mean bodyweight of 175 g) on days –1, 0, 3, and 6, i.e. 1 day beforeAA induction, on the day of induction (day 0), ... or 50 µl PBS only, wereinjected intradermally into the pinna of the left or the rightear, respectively, on day 13 after induction of AA. One day after injection, the swelling of the ears was ... AA induction, on the day of induction [day 0], and thereafter). The effects on T-cell reactivity in vivo (delayed-typehypersensitivity), ex vivo (concanavalin-A-induced proliferation), and in...