25/1/19医学微生物学白喉棒状杆菌:棒状杆菌属呼吸道传染病白喉的病原体.•形态染色G+培养特性营养要求较高,亚碲酸钾血平板:亚碲还原为碲,黑色菌落,鉴别选择CorynebacteriumdiphtheriaecellsstainedbyAlbert'stechniqueThebarredappearanceisduetothepresenceofpolyphosphateinclusionscalledvolutin.From:KenTodar'sMicrobialWorld25/1/19医学微生物学致病性与免疫性•致病物质–白喉毒素,噬菌体携带(主要致病因素)–索状因子:破坏线粒体,影响细胞呼吸和能量产生–K抗原:抗吞噬.25/1/19医学微生物学Thischildhasdiphtheriaresultinginathickgraycoatingoverbackofthroat.Thiscoatingcaneventuallyexpanddownthroughairwayand,ifnottreated,thechildcoulddiefromsuffocationCDC所致疾病——白喉...