A) Anaplasma platys nested PCR products of 30 blood samples from dogs in Chile. Positive samples from dogs 7, 12, 17, 19, 23, and 25 are indicated by a. This epidemiological survey of Anaplasma platys was carried out in rural and urban areas of three distinct regions of the State of Minas Gerais. Anaplasma platys is a Gram-negative bacterium that belongs to the rickettsial family Anaplasmataceae. In dogs, A platys multiplies inside platelet vacuoles and .

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Clin Diagn Lab Immunol ; 9: Abstract Anaplasma platys is an obligate intracellular rickettsial pathogen that infects platelets of dogs, forming basophilic intracellular morulae. The brown dog tick, Rhipicephalus sanguineusis the main tick that infests dogs in Chile 1.

In Venezuela, a few symptomatic human cases have been diagnosed since by the presence of platelet morulae in blood smears Ehrlichia platys Anaplasma platys in dogs from Maracaibo, Venezuela: In the present report, platts inclusions were documented in bone marrow thrombocyte precursors of two young naturally infected dogs, indicating anwplasma A.

Anaplasma platys, anaplasmosis, ehrlichiosis, dog diseases, tick-borne diseases, polymerase chain reaction, 16S rRNA, groESL operon, phylogenetic analysis, dispatch. The cytological findings in the bone marrow of both dogs were consistent with the hematological abnormalities concurrently found in the blood. First evidence of Anaplasma platys in Rhipicephalus sanguineus Acari: Some inclusions were surrounded by a naaplasma membrane, whereas others seemed to be in the cytoplasm of the platelet precursors without a membrane Fig.

For Ehrlichia genus—specific PCR, 2.

Table 2 Nucleotide sequence differences among groESL genes from different strains of Anaplasma platys. Phylogenetic relationship between 3 Chilean Anaplasma platys strains and other strains of the families Rickettsiaceae and Anaplasmataceae based on the groESL gene nucleotide sequences. The organism must be differentiated from Howell-Jolly bodies. Journal List Emerg Infect Dis v. Anwplasma of the tree was estimated by bootstrap analysis of 1, replications.


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Clinical manifestations of infectious canine cyclic thrombocytopenia. The organisms were morphologically identical to A. Therefore, the cellular invasion mechanisms of megakaryocytic precursors with transfer to proplatelets need to be more thoroughly elucidated. Endemic areas in the U. From Wikipedia, the free encyclopedia. Pseudomonas aeruginosa Pseudomonas infection Moraxella catarrhalis Acinetobacter baumannii. The clinical syndrome is one of acute onset, severe anemia with icterus, fever, anorexia, dehydration and depression.

anaplasmx The purpose of this study was to identify the etiologic agent of canine ehrlichiosis in Chile. Since its first report in the United States in 10A. Platelet aggregation studies in dogs with acute Ehrlichia platys infection.

Expected sizes of amplification products were, and bp, respectively. Rickettsia typhi Murine typhus Rickettsia prowazekii Epidemic typhusBrill—Zinsser diseaseFlying squirrel typhus.

Anaplasma platys in canine blood | eClinpath

Please review our privacy policy. Vector-borne pathogens in dogs from Costa Rica: A phylogenetic tree was constructed by the neighbor-joining method and distance matrices for the aligned sequences were anaplasja by using the Kimura 2-parameter method. Published ahead of print 12 March Footnotes Published ahead of print 12 March Recent publications report A. The expected size of the amplification product was bp. The findings herein reported indicate that A. Rickettsia rickettsii Rocky Mountain spotted fever Rickettsia conorii Boutonneuse fever Rickettsia japonica Japanese spotted fever Rickettsia sibirica North Asian tick typhus Rickettsia australis Queensland tick typhus Rickettsia honei Flinders Island spotted fever Rickettsia africae African tick bite fever Rickettsia parkeri American tick bite fever Rickettsia aeschlimannii Rickettsia aeschlimannii infection.

The Study Blood samples were obtained from 30 pet plaths seen in a private veterinary clinic in Santiago, Chile, with tick infestation and clinical signs compatible with ehrlichiosis hemorrhagic manifestations and thrombocytopenia.


Anaplasma species are intracellular bacteria that are within the family of Anaplasmataceae of the order Rickettsiales. Articles with ‘species’ microformats All stub articles.

The brown dog tick, Rhipicephalus sanguineus Latreille, Acari: Support Center Support Center.

Both dogs originated from a kennel located in Putignano Bari, Apulia, Italy. A tick vector of A.

Anaplasma platys infection induces platelet phagocytosis as a consequence anaplasam direct injury or immune-mediated destruction 3 ; moreover, the increase in circulating monocytes of dog 1 and bone marrow monocyte and macrophage hyperplasia and platelet phagocytosis observed in both dogs may be related to an overwhelming A.

Dysplasia was also evident and characterized by cytoplasm fragmentation and nuclear abnormalities, including hyperlobulation and disorganized nuclei. Suggested citation for this article: Dogs infected with different A.

Views Read Edit View history. Ehrlichioses are recognized as important emerging tickborne diseases in humans and wild and domestic animals. Invest Clin ; Due to the presence of unique bone marrow examination abnormalities, two 3-month-old, mixed-breed female case 1 and male case 2 dogs were selected from paltys described in previous studies involving canine vector-borne diseases CVBDs 12.

Ehrlichiaceae Scientific classification Kingdom: Infectious diseases Bacterial disease: These 6 samples were positive only for A. Anaplasma marginale is an i ntracellular erythroparasite of cattle that produces severe hemolytic anemia and is of major economic importance.

Klebsiella pneumoniae RhinoscleromaKlebsiella pneumonia Klebsiella granulomatis Granuloma inguinale Klebsiella oxytoca Escherichia coli: