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Biosci. j. (Online) ; 27(3): 452-459, may./jun. 2011. tab
Article in English | LILACS | ID: biblio-911827

ABSTRACT

Ehrlichiosis and leptospirosis are frequent diseases in tropical countries, although they are not always considered as differential diagnosis. The purpose of this work was to evaluate clinical signs and hematological alterations in dogs reactive to leptospirosis, among them those that presented morulae of Ehrlichia spp. in peripheral blood, and to recognize the frequency of Leptospira serovars by means of the microscopic agglutination test. Blood samples were used from 50 dogs presenting morulae of Ehrlichia spp. in blood extensions collected from the ear marginal capillaries. The clinical signs frequently observed were apathy (100.00%), anorexia/dysorexia (100.00%), adypsia (83.33%), ocular secretion (66.66%), reactive lymph nodes (66.66%), diarrhea (58.33%), vomiting, anemia and fever (41.66%). Albeit unspecific, anemia and thrombocytopenia are frequent hematological findings in canine ehrlichiosis and are present in both diseases. Of the 50 dogs with ehrlichiosis, 12 (24.00%) were reactive to leptospirosis, and the most frequent serovars were Pomona (33.33%), followed by Canicola (27.77%) and Icterohaemorrhagiae (22.22%). The results suggest the need to establish a differential diagnosis between these diseases that may occur concomitantly.


Erliquiose e leptospirose são doenças frequentes em países tropicais, embora nem sempre seja feito o diagnóstico diferencial entre estas. Objetivou-se avaliar os sinais clínicos e as alterações hematológicas em cães reagentes para leptospirose, dentre aqueles que apresentaram mórula de Ehrlichia spp. e reconhecer a frequência dos sorovares de Leptospira, por meio do teste de aglutinação microscópica. Foram utilizadas amostras sanguíneas de 50 cães que apresentavam mórulas de Ehrlichia spp. em extensões de sangue coletadas dos capilares marginais da orelha. Os sinais clínicos frequentemente observados foram apatia (100,00%), anorexia/disorexia (100,00%), adipsia (83,33%), secreção ocular (66,66%), linfonodos reativos (66,66%), diarréia (58,33%), vômito, anemia e febre (41,66%). Embora inespecíficos, anemia e trombocitopenia são achados hematológicos frequentes na erliquiose canina e presente em ambas as doenças. Dos 50 cães com erliquiose, 12 (24,00%) apresentaram-se reagentes para leptospirose, sendo os sorovares mais frequentes: Pomona (33,33%) seguido pelo Canicola (27,77%) e Icterohaemorrhagiae (22,22%). Os resultados sugerem a necessidade de se estabelecer um diagnóstico diferencial entre estas doenças que podem ocorrer concomitantemente.


Subject(s)
Dogs , Dog Diseases , Dogs , Ehrlichiosis , Ehrlichiosis/pathology , Leptospirosis/diagnosis , Leptospirosis/pathology , Hematology
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