Fig. 7From: Design of an oral vaccine using Lactococcus lactis against brucellosis: an in vitro and in vivo studyHematoxylin & eosin staining of spleen tissue sections. a–d Respectively magnification ×4, ×10, ×40, ×100—increased space of sinusoids (blue arrow), spleen tissue necrosis (green arrow), bleeding in the tissue (yellow arrow), abscess in the tissue, brucellosis (red arrow)Back to article page