Methods 40 C57BL/6N mice were divided into 5 groups: Mtb8.4/hIL-12 chimeric gene vaccine, Mtb8.4 gene vaccine, BCG, empty vector alone and PBS.

• 方法将雌性C57BL/6N小鼠40只；随机分为5组；即Mtb8.；4/hIL-12嵌合基因、Mtb8