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Updated: May 10, 2026

Discovery of New Intracellular Pathogens by Amoebal Coculture and Amoebal Enrichment Approaches
Published on: October 27, 2013
A novel Chlamydiaceae-like bacterium found in faecal specimens from sea birds from the Bering Sea
Linus Christerson1, Maria Blomqvist, Karin Grannas
1Section of Clinical Bacteriology and Section of Infectious Diseases, Department of Medical Sciences, Uppsala University, Uppsala, Sweden. Department of Molecular Evolution, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden. Bacterial Zoonoses Unit, French Food Safety Agency (AFSSA), Maisons-Alfort, France. Section for Zoonotic Ecology and Epidemiology, University of Kalmar, Kalmar, Sweden. Department of Laboratory Medicine, Norra Älvsborg County Hospital, Trollhättan, Sweden.
Abstract:
The family Chlamydiaceae contains several bacterial pathogens of important human and veterinary medical concern, such as Chlamydia trachomatis and Chlamydophila psittaci. Within the order Chlamydiales there are also an increasing number of chlamydia-like bacteria whose biodiversity, host range and environmental spread seem to have been largely underestimated, and which are currently being investigated for their potential medical relevance. In this study we present 16S rRNA, rnpB and ompA gene sequence data congruently indicating a novel chlamydia-like bacterium found in faecal specimens from opportunistic fish-eating sea birds, belonging to the Laridae and Alcidae families, from the Bering Sea. This novel bacterium appears to be closer to the Chlamydiaceae than other chlamydia-like bacteria and is most likely a novel genus within the Chlamydiaceae family.
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