At received four intramuscular doses of naked DNA (400 μg), BCG or saline. Thirty days after the last dose, mice were challenged intra-tracheally with H37RV and 30 days post infection we performed histological analysis of the lung. (A) non-infected; (B) saline; (C) naked hsp65; (D) COMP-hsp65 and (E) BCG groups. Representative sections of HE staining. Magnifications: ×65.<p><b>Copyright information:</b></p><p>Taken from "Protection against tuberculosis by a single intranasal administration of DNA-hsp65 vaccine complexed with cationic liposomes"</p><p>http://www.biomedcentral.com/1471-2172/9/38</p><p>BMC Immunology 2008;9():38-38.</p><p>Published online 22 Jul 2008</p><p>PMCID:PMC2500095.</p><p></p