Manifestations of Infection: Signs and symptoms vary according to the site and severity of infection. Diagnosis requires a composite of information, including history, physical examination, radiographic findings, and laboratory data. Microbial Causes of Infection: Infections may be caused by bacteria, viruses, fungi, and parasites. The pathogen may be exogenous (acquired from environmental or animal sources or from other persons) or endogenous (from the normal flora)

Bacterial genomics Organisation Linear chromosomes Borrelia burgdorferi Streptomyces coelicolor Multiple chromosomes Vibrio cholerae Plasmids Borrelia burgdorferi

Bacteriophages ( phages ) are obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery . They are viruses that infect bacteria

The process of destroying all microbial forms. A sterile object is one free of all microbial forms, including bacterial spores

SIZE OF BACTERIA Unit for measurement : Micron or micrometer,μm: 1μm=10-3mm Size: Varies with kinds of bacteria, and also related to their age and external environment

What is critical care medicine？ Multidisciplinary healthcare specialty cares for patients with acute, life￾threatening illness or injury which including continuum of life support from the scene through discharge Coordinated care systems, analysis of treatment options, protocols, guidelines for the care of individual patients

Medical Microbiology and Parasitology Part I: Medical Microbiology Part II: Medical Parasitology

医学遗传学——01绪论

一、 教材： 1、《内科学》（王吉耀 廖二元 胡品津主编，供 8 年制及 7 年制等临床医学专业用，人民卫生出版社出版 2005 年）

吉林大学：《病原生物学》课程PPT教学课件（医学微生物学）其他细菌