Probable epizootic chlamydiosis in wild California (Larus californicus) and ring-billed (Larus delawarensis) gulls in North Dakota

Journal of Wildlife Diseases
J C Franson, J E Pearson

Abstract

During the summer of 1986, more than 400 California gulls (Larus californicus) and ring-billed gulls (Larvus delawarensis), primarily fledglings, died on an island in Lake Sakakawea near New Town, North Dakota (USA). Mortality was attributed largely to chlamydiosis. Necropsy findings in nine carcasses included splenomegaly (n = 9), hepatomegaly (n = 4), and pericarditis (n = 1). Livers from three California gulls and two ring-billed gulls, and spleens from the same five birds plus a third ring-billed gull were positive for Chlamydia psittaci by the direct immunofluorescence test. Chlamydia psittaci was isolated from separate pools of liver and spleen from one California gull and one ring-billed gull. This is believed to be the first record of epizootic chlamydiosis in gulls and the second report of epizootic chlamydial mortality in wild birds in North America.

Citations

Jan 1, 1995·Parasitology·B T Grenfell, F M Gulland
May 15, 2009·Biological Reviews of the Cambridge Philosophical Society·Clare McW H BenskinIan R Hartley
Jul 2, 2003·Journal of Comparative Pathology·D Longbottom, L J Coulter
May 3, 2015·Applied and Environmental Microbiology·R AazizK Laroucau
Feb 13, 2013·Avian Diseases·Maria BlomqvistBjörn Olsen
Aug 10, 2007·Journal of Toxicology and Environmental Health. Part a·Glen A FoxG Douglas Campbell
Dec 15, 2018·Transboundary and Emerging Diseases·Pablo I PlazaSergio A Lambertucci
Aug 29, 2021·Pathogens·Helena S StokesAndrew T D Bennett

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