Probable Epizootic Chlamydiosis in Wild California (Larus californicus) and Ring-Billed (Larus delawarensis) Gulls in North Dakota

Jc, Franson; Je, Pearson

doi:10.7589/0090-3558-31.3.424

Cited by 28 publications

(23 citation statements)

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“…The study was conducted on birds from the Bay of Biscay (northeast Atlantic Ocean). Studies had previously been published on seabirds, either from the United States on birds found dead during an outbreak of chlamydiosis (18) or caught in the wild in the South Georgia archipelago (21), the Faroe Islands (32), the Bering Sea (26) or, more recently, in the Baltic Sea (22). Investigation of the seabirds brought into care centers is an easy way to access wild birds, without having to organize catches on site.…”

Section: Discussionmentioning

confidence: 99%

“…As in domestic birds, stress due to weather changes, nesting, migration, or food shortages may precipitate the disease in wild birds (10), even though the infection often remains inapparent. Outbreaks of disease with relatively high morbidity and mortality have been described (8,18,24,29,30). Although domestic birds are the most common source of infection in humans, wild birds have also been reported to be a source of C. psittaci infection in the wild (31)(32)(33) or in wildlife rescue centers (WRCs) (25).…”

mentioning

confidence: 99%

“…In wild birds, C. psittaci is highly prevalent among Psittaciformes and Columbiformes (7), but representatives of other orders are also recognized as natural carriers (18), for instance, Anseriformes, Charadriiformes, Falconiformes, Passeriformes, Procellariformes, and Strigiformes (4,(18)(19)(20)(21)(22)(23)(24)(25). Moreover, other Chlamydiaceae or nonclassified chlamydiae have been detected in Charadriiformes and Pelecaniformes (15,22,26).…”

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confidence: 99%

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Chlamydiaceae in North Atlantic Seabirds Admitted to a Wildlife Rescue Center in Western France

Aaziz

Gourlay

Vorimore

et al. 2015

Appl Environ Microbiol

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f Birds are the primary hosts of Chlamydia psittaci, a bacterium that can cause avian chlamydiosis in birds and psittacosis in humans. Wild seabirds are frequently admitted to wildlife rescue centers (WRC) at European Atlantic coasts, for example, in connection with oil spills. To investigate the extent of chlamydial shedding by these birds and the resulting risk for animals in care and the medical staff, seabirds from a French WRC were sampled from May 2011 to January 2014. By use of a quantitative PCR (qPCR), 195 seabirds belonging to 4 orders, 5 families and 13 species were examined, of which 18.5% proved to be Chlamydiaceae positive. The highest prevalence of shedders was found in northern gannets (Morus bassanus) (41%), followed by European herring gulls (Larus argentatus) (14%) and common murres (Uria aalge) (7%). Molecular characterization and phylogenetic analysis of qPCR-positive northern gannet samples revealed two variants of a strain closely related to C. psittaci. In European herring gulls and in one common murre, strains showing high sequence similarity to the atypical Chlamydiaceae-like C122 previously found in gulls were detected. Our study shows that seabirds from the northeastern Atlantic Ocean carry several chlamydial organisms, including C. psittaci-related strains. The staff in WRCs should take protective measures, particularly in the case of mass admissions of seabirds.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Chlamydiaceae in North Atlantic Seabirds Admitted to a Wildlife Rescue Center in Western France

Aaziz

Gourlay

Vorimore

et al. 2015

Appl Environ Microbiol

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“…Underwood & Stowe, 1984; Cunningham & Simmonds, 1992). Very little is known of specific disease susceptibilities of the bald ibis but among the infections that are known to cause mortality incidents in some avian taxa are a range of virus diseases ( Ritchie & Carter, 1996) including, for example, Newcastle (a paramyxovirus) disease ( Alexander, 1991) and avian influenza ( Becker, 1966); bacterial diseases such as salmonellosis and pasteurellosis ( Friend, 1987); chlamydiosis ( Franson & Pearson, 1995); and a variety of parasitic infestations, for example of acanthocephala in waterfowl ( Rayski & Garden, 1961). Among toxic diseases that have caused avian mortality incidents are botulism ( Lloyd et al , 1976 ; Locke & Friend, 1987; Wobeser, 1997), accidental or deliberate poisonings with a variety of types of pesticides (e.g.…”

Section: Discussionmentioning

confidence: 99%

Mortality incident in northern bald ibis Geronticus eremita in Morocco in May 1996

Touti

Oumellouk

Bowden

et al. 1999

Oryx

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In May 1996 there was an acute and dramatic mortality incident in the last remaining wild population of northern bald ibis Geronticus eremita. This species is Critically Endangered, comprising only about 250 wild individuals, which occur on the Atlantic coast of southern Morocco. Over a period of 10 days a total of 38 adult birds (aged 1 year or more) died or disappeared. Deaths, probably secondary to the loss of one or both parent birds, also occurred subsequently in six nestlings and one recent fledgling. The incident appeared to involve no other species. This paper describes the pattern of the incident, and pathological, microbiological and toxicological investigations and findings. Several features point to a toxic aetiology but the cause of the incident has not been established.

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“…Only 40% of gulls with black or dark purple spleens were infected with schistosomes or coccidia, and only 20% of their spleens contained amyloid deposits. Markedly enlarged, dark-colored spleens were found in all nine gulls (L. californicus and L. delawarensis) examined from an epizootic mortality associated with Clamydia psittaci (Franson & Pearson, 1995).…”

Section: Spleen Mass Volume and Gross Histopathologymentioning

confidence: 99%

Health of Herring Gulls (Larus argentatus) in Relation to Breeding Location in the Early 1990s. II. Cellular and Histopathological Measures

Fox

Grasman

Campbell

2007

Journal of Toxicology and Environmental Health, Part A

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Organosomatic indices, hematological indicators of stress, and histopathological lesions were quantified for over 150 incubating herring gulls (Larus argentatus) sampled in 11 colonies throughout the Great Lakes and reference colonies in Lake Winnipeg and the Bay of Fundy. Of 21 parameters assessed, significantly more differed between Great Lakes colonies and reference colonies than between the two reference colonies. Relative adrenal, kidney, and liver masses of gulls from some Great Lakes colonies were reduced and thyroid masses increased relative to gulls from reference colonies. Foci of cellular atypia were observed in the hepatocytes of two Great Lakes gulls. Chronic periportal hepatitis, lipogranulomas and vacuolation of hepatocytes, and chronic granulomatous interstitial nephritis were more prevalent or severe in gulls from Great Lakes colonies and were associated with contaminants. The kidneys of gulls from the three most contaminated locations were damaged and functionally compromised. Interstitial nephritis was likely the most functionally significant histopathological lesion. Portal-tract fibrosis, granulomatous hepatitis, and kidney tubule dilation/obstruction and splenic enlargement were more prevalent or severe at reference sites and were associated with blood-borne parasites. Amyloid deposits were observed in the spleen, kidneys, or liver of nearly half of the gulls. Associations between the prevalence or severity of lesions and contaminant levels in gull tissues or the trophic level of their diet suggest some lesions are toxicopathic. Associations were most frequently found with planar halogenated aromatic hydrocarbons and lead. The stress response, as measured by the heterophil/lymphocyte ratio, was attenuated in gulls from Areas of Concern and associated with decreased adrenal mass. Our findings suggest that adult Great Lakes gulls suffered from chronic exposure to chemical stressors in the early 1990s sufficient to modulate endocrine function and physiological processes and induce structural changes in tissues.

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Probable Epizootic Chlamydiosis in Wild California (Larus californicus) and Ring-Billed (Larus delawarensis) Gulls in North Dakota

Abstract: Duringthe summer of 1986, more than 400 California gulls (Larus californicus)

Cited by 28 publications

References 0 publications

Chlamydiaceae in North Atlantic Seabirds Admitted to a Wildlife Rescue Center in Western France

Chlamydiaceae in North Atlantic Seabirds Admitted to a Wildlife Rescue Center in Western France

Mortality incident in northern bald ibis Geronticus eremita in Morocco in May 1996

Health of Herring Gulls (Larus argentatus) in Relation to Breeding Location in the Early 1990s. II. Cellular and Histopathological Measures

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