Suspected cases of Neorickettsia-like organisms in Brazilian dogs

Selwyn A. Headley, Odilon Vidotto, Diana Scorpio, J. Stephen Dumler, Joseph L Mankowski

Research output: Contribution to journalArticle

Abstract

Preliminary findings of gross and histopathological lesions consistent with salmon poisoning disease in 10 dogs from southern Brazil are described. Lesions were restricted to the spleen, lymph nodes, and intestinal lymphoid tissues. Grossly, there was marked hyperplasia of mesenteric lymph nodes and Peyer's patches. Microscopic alterations were characterized by diffuse hyperplasia of intestinal lymphoid tissues and Peyer's patches. Intracytoplasmic organisms consistent with Neorickettsia helminthoeca were demonstrated by Giemsa stain in reticuloendothelial cells of the intestine, spleen, Peyer's patches, and lymph nodes. We have named this organism Neorickettsia helminthoeca-like because of its marked similarity with the agent described in the United States.

Original languageEnglish (US)
Pages (from-to)79-83
Number of pages5
JournalAnnals of the New York Academy of Sciences
Volume1026
DOIs
StatePublished - 2004

Fingerprint

Neorickettsia
Peyer's Patches
Lymph Nodes
Azure Stains
Lymphoid Tissue
Dogs
Tissue
Hyperplasia
Spleen
Salmon
Poisoning
Intestines
Brazil
Lesion
Organism
Dog

Keywords

  • Dogs
  • Neorickettsia helminthoeca
  • Parasitology
  • Pathology
  • Rickettsia

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Suspected cases of Neorickettsia-like organisms in Brazilian dogs. / Headley, Selwyn A.; Vidotto, Odilon; Scorpio, Diana; Dumler, J. Stephen; Mankowski, Joseph L.

In: Annals of the New York Academy of Sciences, Vol. 1026, 2004, p. 79-83.

Research output: Contribution to journalArticle

Headley, Selwyn A. ; Vidotto, Odilon ; Scorpio, Diana ; Dumler, J. Stephen ; Mankowski, Joseph L. / Suspected cases of Neorickettsia-like organisms in Brazilian dogs. In: Annals of the New York Academy of Sciences. 2004 ; Vol. 1026. pp. 79-83.
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