Disease Ecology Seminar: Stephen Greiman

"Worms and Germs: Diversity, Evolution and Transmission Biology of Neorickettsia (Rickettsiales: Anaplasmataceae) within Digeneans," Stephen Greiman, assistant professor, Department of Biology, Georgia Southern University.  

Abstract: Digeneans are endoparasitic flatworms with complex life cycles that involve two or more different animals as definitive and intermediate hosts. Some digenean species harbor bacterial endosymbionts belonging to the genus Neorickettsia (Order: Rickettsiales, Family: Anaplasmataceae). Neorickettsia occur in all life stages of digeneans and are maintained by vertical transmission. Far from benign however, Neorickettsia may also be transmitted horizontally by digenean parasites to their vertebrate definitive hosts. Once inside, Neorickettsia can infect macrophages and other cell types. For some vertebrate species (e.g. dogs, horses and humans), neorickettsial infections cause severe disease. Taken from a mostly parasitological perspective, this presentation will focus on the modes and quantitative aspects of Neorickettsia transmission and co-evolution with their digenean hosts through the use of molecular techniques.

Wednesday, February 19 at 12:10pm to 1:20pm

Ecology Building, Auditorium
140 E Green Street, Athens, GA 30602

Event Type

Classes and Workshops, Lectures and Discussions


Current Students, Alumni, Faculty & Staff, Prospective Students


Research, Science & Technology




Free, Please RSVP for Lunch

Center for the Ecology of Infectious Diseases
School of Ecology


Event Contact Name

Trippe Ross

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