Dr. Frerichs is Professor Emeritus in the Department of Epidemiology. He was founding Chair (1988-2001) of the Epidemiology Department when it changed in 1988 from a division in a single-department School of Public Health (SPH). He was also Chair of the SPH's Faculty Executive Committee for two terms (2002-2004 and 2006-2008). For further details on Professor Frerichs, click on "description" above. For more information on his classes and many authored websites, review below or click on headings in the column at left.


Field Epidemiology and Laboratory Training Program (FELTP), U.S. Centers for Disease Control and Prevention (CDC), Georgian National Center for Disease Control and Public Health, Tbilisi, Georgia (two weeks, lecture and analysis demonstrations, May 3-14, 2010)

GUEST LECTURES, 2008 (Windows Operating System)

Available for general distribution as animated Powerpoint presentations.

HIV Testing Strategies, 2008, EPI 227, May 30, 2008

Mortality Indices, EPI 200B, March 6, 2008

DALYs and the Burden of Disease, EPI 200B, March 11, 2008


You must have Acrobat Reader in order to read the course outlines (it's free). 

Summer Session

  • Epidemiology 100 Principles of Epidemiology (internet sight and sound, in-class lectures)
    • 2011 Course Description (posted January 19, 2011)
    • 2011 Course Outline (posted January 18, 2011)

Free On-line Course

Rapid Survey Course (internet sight and sound, all browsers)


This site provides reference information for planning, conducting and analyzing rapid surveys. 


The intent of the John Snow site is to promote public health history among users of the internet and to demonstrate new methods for presenting educational information over the web.  While the site's subject resides in the past, the site itself focuses on the future, featuring sound, animation and detailed graphics.  The presentations are intended for broadband transmission, increasingly available in schools, offices and homes with cable, satellite, high-speed telephone, and wireless internet connections. 

1818 map of London - Pre-John Snow

1846 map of London - During John Snow

1856 Water map of London

1859 map of London - John Snow

1872 map of London region - Post-John Snow


This site focuses on diseases of potential and actual terrorism, but from the perspective of public health epidemiologists. It features background information, links to appropriate agencies, and 1600+ journal and newspaper articles that offer interesting insights to the distribution, determinants and control of the various diseases, and effects on public policies. 

Contemporary History of Bioterrorism (Oct 2001 - Sep 2003)


An outbreak of intentionally-spread anthrax occurred in United States during the latter part of 2001, causing both cutaneous and inhalational anthrax and several deaths. This site provides clinical and epidemiologic details on many aspects of the anthrax field investigation, and descriptive overview graphs of onset times, used often by the discipline.


The HIV/AIDS epidemic continues to devastate many regions of the world.  This site focuses primarily on Asia and presents controversies that have arisen in attempting to dealing with the rising HIV epidemic.  The presentations adhere to the public health mandate of protecting  susceptibles from becoming  infected, leaving to others the important medical mandate of treating and caring for HIV infected persons.  Included are discussions and publications on widespread testing, surveillance systems, normalization of infection, HIV reporting, partner notification, and home testing with saliva.