Vibrio fischeri (green) in the ciliated epithelial appendages of the bobtail squid light organ
© D. Tarnowski, Mandel Lab


Cooperative symbiotic relationships between humans and bacteria have historically been overlooked in the face of our struggle with bacterial pathogens. Yet, the bacteria that call our body “home” aid our survival against these pathogens by, for instance, competing with them for space and nutrients. Examples of cooperative and pathogenic relationships between organisms exist throughout the natural world, and our symbiosis faculty lead the way in studying animal:bacteria symbioses.


Mark Mandel

Position title: Professor and Vice Chair of Medical Microbiology & Immunology


Phone: Office: (608) 261-1170, Laboratory: (608) 261-1171

5155 Microbial Sciences Building