Image: Non-lytic release of vesicles containing Salmonella from the ciliate, Tetrahymena. (Note: Images require QuickTime Player that can be downloaded at http://www.apple.com/quicktime/download/. To watch the movie again, double click on the movie image, click "refresh" in your browser, or click on the arrow in the lower left corner of the movie screen.)

Video clips prepared by S.G. Berk, with assistance from the Institute for Technological Scholarship, at the Center for the Management, Utilization and Protection of Water Resources at Tennessee Technological University.