What does a pathogen have to do? Infect (infest) a host Reproduce(replicate) itself Ensure that its progeny are transmitted to another host

动物传梁病等 感染( infection),又称传染,是病原体对动物体的 种寄生过程。 在漫长的进化过程中,有些寄生物与动物体宿主之 间达到了互相适应,互不损害对方的共生状态.例 如肠道中的大肠杆菌和某些真菌。但这种平衡是相 对的,当某些因素导至宿主的免疫功能受损(如艾 滋病)或机械损伤使寄生物离开其固有寄生部位而到 达其不习惯寄生的部位,如大肠杆菌进入腹腔或泌 回本节尿道时,平衡不复存在而引起宿主的损伤,则可产 生机会性感染

Why Serious deformities Unbalance of facial growth Error in operation Shortcoming of operation design Infection and Split open

Purulent Meningitis Acute infection of central nervous system(CNS). 90% of cases occur in the age of 1 mo-5yr. The inflammation of meninges caused by various bacteria. Common features in clinical practices include: fever, increased intracranial pressure, meningeal irritation

草鱼出血病病毒感染鱼肾(C1k)单层细胞后,产生明显的细胞病变,其繁殖周期为 2一3天。病毒增殖的上升期在感染后的12—48小时。28°下,当感染复数(Multiplicity of Infection简称mo为0.05pfu/ce11时病毒滴价可达1.78×101PU/ml,不同 温度(25°℃、28°℃、30C)下通气培养,测定病毒滴价略有差异

• Viral hepatitis is a group systemic infection affecting the liver predominantly caused by 5 kinds of viruses at least • Five hepatotropic hepatitis viruses are responsible for the vast majority of hepatitis cases(classical) : Hepatitis A virus (HAV) Hepatitis B virus (HBV) Hepatitis C virus (HCV) Hepatitis D or delta virus (HDV) Hepatitis E virus (HEV)

AIDS Complications 艾滋病并发症 Infection 感染 Symptoms 症状 Diagnosis 诊断

复旦大学：《医学微生物学 Medical Microbiology（MBBS）》课程讲义_理论课_Lecture5-anti-infection-vaccine

• 了解手部急性化脓性感染的解剖特点 • 了解败血症和脓血症的病理生理 • 了解破伤风及气性坏疽的病因和病理生理 • 熟悉外科感染的分类、病因及病理生理 • 熟悉各类软组织急性化脓性感染的病因、病理生理，护理评估及护理问题 • 熟悉手部急性化脓性感染处理原则、临床表现及护理 • 熟悉败血症和脓血症的诊断要点

长沙医学院：尿路感染（PPT讲稿）Urinary Tract Infection