GMS 6039: Bacterial Pathogenesis


Catalog description: Survey of medical microbiology, focusing on the biological requirements for bacterial pathogenicity.


Pre-requisites: Consent of instructor.


Expanded description and explanation: Bacterial pathogenicity depends on five basic biological requirements that include attachment to a host surface, entry into host tissues, multiplication in the in vivo environment, interference with host defense mechanisms, and damage to the host. This course will examine the types and regulation of virulence factors that enable bacteria to accomplish these requirements. The molecular basis for clonality (not all strains of a particular pathogen are equally virulent), the role of mobile genetic elements in horizontal transmission of virulence factors, and the contribution of dead end evolution to increased pathogenicity will also be examined. The teaching format will involve lectures and paper discussions.


This course represents the second course in a 3-course sequence (GMS 6038, GMS 6039 and GMS 6040) dealing with medical microbiology, with the emphasis on the biological requirements of bacterial pathogenicity. The first course focuses on the genetics and physiology of bacteria, their use as research tools, and the role of bacteria in causing disease. The third course focuses on the host response and the subsequent evasion of that response by pathogens.


  1. Host defenses against bacterial pathogens
  2. Bacterial virulence factors
  3. Transmission and evolution of virulence genes
  4. Epidemiology and population genetics
  5. Regulation of virulence genes
  6. Experimental approaches to studying host/parasite interactions
  7. Vaccine and other approaches to modulating the host response
  8. Mechanism of action of antibiotics
  9. Bacterial evasion of host responses
  10. Mechanisms of bacterial resistance to antibiotics
  11. Diphtheria
  12. Salmonella infections
  13. Yersinia infections
  14. Neisseria infections
  15. Streptococcal infections

Evaluation of student performance: One final examination (80%), and 2-4 homework problems (20%).


Faculty: Dr. Jeff Hillman will be the Director for this course. He will be assisted in the peresentation of material to the students by various Graduate Faculty of the Colleges of Medicine and Dentistry.


Assigned Reading: Readings will be assigned from the research literature from journals such as Journal of Bacteriology, Nature and Science.


Course Objectives: The objective of this course is to provide the student with a comprehensive overview of medically important bacterial pathogens and their relationships with their hosts.