Public Health Biology 



 
 November 22, 2009

 
Course Syllabus


 

Course Description

Offers an integrative molecular and biological perspective on public health problems. Explores population biology and ecological principles underlying public health and reviews molecular biology in relation to public health biology. Modules focus on specific diseases of viral, bacterial, and environmental origin. Specific examples of each type are used to develop the general principles that govern interactions among susceptible organisms and etiologic agents. Special attention is devoted to factors that act in reproduction and development. Emphasis placed on common elements encountered in these modules. These may include origin and dissemination of drug resistance, organization and transmission of virulence determinants, modulation of immune responses, disruption of signal transduction pathways, and perturbation of gene expression. The role of the genetic constitution of the host is considered as well.


Orientation

Public health biology is the study of living things in public Health. Public health biology is the glass half full of public health rather than disease biology-the glass half empty with disease.

During this course we will move back and forth across the moving line of health and disease. We will also move back and forth from health and disease in individuals and the community. We hope to address the basic biologic principles in definition, monitoring and promoting health or preventing disease. Lung cancer can inform us about smoking habits. Infectious diarrhea can inform us of the lack of clean water. Physicians may treat the same persons, presenting with the same conditions time and time again. Public health attempts to define sources of disease and intervene on community level. Doctors were trained to mop up water on the floors as first responders, while public health turns off the spigot. Generally speaking, physicians focus on individuals, and public health specialists focus on communities. We do need both approaches and they are interdependent.

Greg Glass will start us off with disease occurrence influenced by environment and population factors with the module on disease ecology. In the second and third modules, Gary Ketner will describe the global war between microbial offense and the human immune system defense. He will finish with treatment tactics of infectious diseases and the genetics of microbial pathogens. Dr. Sharon Krag in the fourth module will change focus to cancer, beginning with the molecular biology of cells and genetics of cancer, finishing similar to Dr. Ketner with treatment and resistance and genetic susceptibility to cancer. Dr. Davidson and Brown will spotlight breast cancer and prostate cancer in the fifth module. The last course module will finish with topics on nutrients or diet in promotion of health or prevention of disease. Dr. Barry Zirkin will outline the advances of modern medicine and surgery in assisting with the creation of human life. Dr. Yager will close with new twist on the classic nature and nurture debate for disease susceptibility during in utero development.

Unfortunately we will not be able to cover the interesting topics of neurobiology, AIDS or TB, genetically modified organisms, environmental toxins or radiation in public health, but hope to challenge you with concepts about how genes and the environment influence public health as we all work to promote health by limiting disease.


Course Objectives

After completion of this course, you will be able to do the following:

  1. List and explain the biological principles required to understand the distribution of infectious and non-infectious diseases of public health importance, the current research related to public health problems, and the methods for the prevention and control of disease 
  2. Illustrate the application of biological principles in attacks on diseases of public health significance 
  3. Highlight areas of public health where recent biological research is likely to be of particular importance

Course Format and Topics

The course is divided into six separate modules:

Module 1: Disease ecology
Module 2: Pathogens and host immunity
Module 3: Treatment and genomics of infectious diseases
Module 4: Current molecular techniques and cancer genetics
Module 5: Breast and prostate cancer
Module 6: Current topics in public health biology
 
All of the materials in each module, including lectures and exercises, can be accessed via the Course Content page.  Lectures are presented sequentially and should be completed in order.


Course Grades and Evaluation

Four exercises are required for this course. The exercises are designed to help you process the information in the lectures. The directions for submitting the exercises vary, but they are clearly defined on the individual lecture pages, which are linked to the Course Content page.

Two examinations will be given—a midterm exam and a final exam. Examination procedures and detailed instructions will be specified at the time of the examination. Books, notes, and other reference materials may be used in completing these exams, but collaboration among students is not allowed. The format of all examinations will be short-answer. Submit your exam via the course Drop Box by 11:59 p.m. (EST) on the due date specified on the course schedule. If you have extenuating circumstances leading to a late submission, please contact the course TA or the faculty member. Points are deducted for late submissions.

  • Midterm examination: 45% — This will be a "take-home" short-answer exam with one question per lecture topic 
  • Final examination: 45% — This will be a "take-home" short-answer exam with one question per lecture topic—excluding topics from the midterm exam
  • Class participation: 10% — Includes the exercises and LiveTalks

Please submit all exercises via the course Drop Box, with the exception of Exercise 1, which is introducing yourself on the course BBS.


Examinations

Note: Copying and pasting from the Web to answer test questions is considered plagiarism. Plagiarism is a violation of the academic ethics code and can result in a  “0” for the exam and/or grade of “F” in course.  

Regrading of Examinations: Errors are occasionally made in the marking of examinations. To permit correction of errors, the course faculty will re-examine answers that students feel were incorrectly graded under the following conditions:

  • Examinations must be submitted for regrading within the first week after the marked exams are returned to the students. 
  • Requests for regrades must be accompanied by a written note calling attention to the specific error involved. 
  • Resubmitted examinations must not be altered or marked in any way. Photocopies of some examinations will be made before graded papers are returned to students and will be compared to re-submitted examinations. 
  • Each submitted exam will be re-examined in its entirety. Grades might in principle rise or fall depending on answers to all questions, including those not directly involved in the error. 
  • Simple mathematical errors will be corrected without re-evaluation of the whole examination. 
  • Please note that regrading is intended to correct errors in grading. Arguments concerning judgmental issues on the part of graders (such as the extent of partial credit to be awarded for an incomplete answer) will not be considered.
 

Reading Material

All required reading materials for this course are accessible through the Welch Library's E-Reserves.  If you are prompted for a password at eReserves, enter 550630sph 

A master list of all required readings for the course is posted in the Online Library 

There is no required textbook for the course. However, the following texts are suggested as references. All except the last one are available electronically by clicking on the hyperlinked book title.

  • Rediscovering Biology: Molecular to Global Perspectives (free, downloadable text). Annenberg Media, Washington, DC; 2003.  
  • Medical Microbiology. 4th ed. Baron, Samuel, editor. Galveston (TX): University of Texas Medical Branch; c1996. 
  • Immunobiology. 5th ed. Janeway, Charles A.; Travers, Paul; Walport, Mark; Shlomchik, Mark. New York and London: Garland Publishing; c2001.
  • Biochemistry. Berg, Jeremy M.; Tymoczko, John L.; and Stryer, Lubert. New York: W. H. Freeman and Co.; 2002.
  • Molecular Biology of the Cell. 4th ed. Alberts, Bruce; Johnson, Alexander; Lewis, Julian; Raff, Martin; Roberts, Keith; Walter, Peter. New York: Garland Publishing; 2002.
  • Genomes. 2nd ed. Brown, T. A. Oxford, UK: BIOS Scientific Publishers Ltd; 2002.
  • Introduction to Genetic Analysis. 7th ed. Griffiths, Anthony J. F.; Miller, Jeffrey H.; Suzuki, David T.; Lewontin, Richard C.; Gelbart, William M. New York: W. H. Freeman & Co.; c1999.
  • Genes and Disease. Bethesda (MD): National Library of Medicine (US), NCBI.
  • Cancer Medicine. 6th ed. Kufe, Donald W.; Pollock, Raphael E.; Weichselbaum, Ralph R.; Bast, Robert C., Jr.; Gansler, Ted S.; Holland, James F.; Frei III, Emil, editors. Hamilton (Canada): BC Decker Inc.; c2003.
  • Biology 5th ed. Campbell, N. A.; Reece, J. B.; Mitchell, L. B. San Francisco: Benjamin-Cummings Publishing Company; 1998.

Contact Information

Course Director:

George Korch

Additional Faculty:

Terry Brown
SPH W3102
410-955-1055
tbrown@jhsph.edu  

Nancy Davidson
CRB 409
410-955-8489
davidna@jhmi.edu

Gregory E. Glass
SPH E5142
410-955-3708
ggurrigl@jhsph.edu

Gary W. Ketner
SPH E5138
410-955-3776
gketner@jhsph.edu

David E. Levin
SPH E8135
410-955-9825
dlevin@jhsph.edu

Jim Yager
SPH W7032
410-955-3348
jyager@jhsph.edu

Barry Zirkin
SPH W3606
410-955-7827
bzirkin@jhsph.edu

Teaching Assistants:

Dilini Ranatunga
dranatun@jhsph.edu

Sivabalan Manivannan
smanivan@jhsph.edu


Help

Concerns
Contact
Concerns about course topics and assignments
Technical concerns about the functionality and operation of course Web pages (before emailing, please make sure that you can replicate the problem)
  • DEHelp, the central help system for all tech support inquiries related to DED courses

Technical help on weekends
  • JHSPH User Support: 410-955-3781
Concerns about your Internet connection
  • Your Internet service provider (e.g., AT&T, Erols, etc.)
Concerns about your personal software
  • Your software vendor


Ethical Conduct

The academic ethics code, as discussed in the Policy and Procedure Memorandum for Students, March 31, 2002, will be adhered to in this class.


Disability Support Services

If you are a student with a documented disability who requires an academic accommodation, please contact Betty H. Addison in the Office of Career Services and Disability Support: dss@jhsph.edu, 410-955-3034, or Room E-1140.


 

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