SC 211: The Human Microbiome: Friends and Foes. Class presentation available.

The human microbiome refers to the vast diversity of bacteria and other microorganisms (including the chemicals they produce) residing within and on the surfaces of every person.  The population of microorganisms in one person’s microbiome is at least ten times greater than the number of cells constituting the average human body.  How does this vast collection of tiny cells impact our lives as humans?  How do these populations change with time, our diet, medications, and other environmental situations?  What in the world is a fecal transplant?  And what is another meaning for gut check?   Many scientists postulate a strong relationship between the types of microorganisms in our bodies and the development of obesity, diabetes, autism, and premature birth.  This course will describe the nature of the human microbiome and update recent research findings.


Barbara Pogosian, MS, Microbiology, CSULB, California certified Public Health Microbiologist, retired Professor of Biology, Golden West College.

 Vern Roohk, Ph.D., Physiology and Biochemistry, University of California, Davis. He is a biomedical device consultant, a technical author and an OLLI STEM Committee Member.

Class Presentations:

December 12: Human Microbiome

December 19: Human Microbiome-Part 2


Mondays, December 12 and 19

10:00 AM – 12:00 Noon


The Irvine Station-Onken


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