Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-10-22
pubmed:abstractText
Seven psittacine birds and a toucan (Ramphastos toco) were diagnosed as infected with Coxiella-like bacteria, based on polymerase chain reaction and bacterial 16S rRNA gene sequence obtained from each bird's liver tissue. Most of the birds exhibited lethargy and weakness for several days prior to death. Gross lesions included mild to moderate emaciation and severely enlarged and mottled pale livers and spleens. Microscopically, there was multifocal necrosis of hepatocytes with infiltration of a mixed population of inflammatory cells, including lymphocytes, heterophils, plasma cells, and macrophages randomly scattered throughout in most birds. In several birds within the macrophages there were vacuoles containing basophilic small cocco-bacilli organisms measuring about 0.5-1 microm. The spleens had increased numbers of mononuclear phagocytic system cells, some of which had vacuoles that contained similar organisms, as observed in the liver. There was inflammation in the epicardium and endocardium, interstitium of the lungs, kidney, adrenal and thyroid glands, lamina propria of the intestine, and in occasional birds in the brain, bursa of Fabricius, and bone marrow associated with similar organisms in the macrophages. Transmission electron microscopy of the liver and lungs in most birds and in the thyroid glands of one bird revealed pleomorphic round to elongated bacteria measuring about 0.45 microm in diameter and more than 1.0 microm in length. Most of these organisms contained a peripheral zone of loosely arranged electron dense material that was located immediately beneath a trilaminar membrane. Occasional organisms contained nucleoids. This is the first documentation of disease presumptively associated with Coxiella-like bacteria in birds.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0005-2086
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
426-32
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Coxiella-like infection in psittacines and a toucan.
pubmed:affiliation
California Animal Health and Food Safety Laboratory System, Fresno Branch, School of Veterinary Medicine, University of California, Davis, Fresno, CA 93725, USA. hlshivaprasad@ucdavis.edu
pubmed:publicationType
Journal Article, Case Reports