EPIDEMIOLOGICAL AND HEMATOLOGICAL ASPECTS OF DOGS WITH EHRLICHIA SP AND ANAPLASMA SP IN JATAÍ-GO.

Authors

  • Ariel Eurides Stella Universidade federal de Jataí - UFJ
  • Vera Lúcia Dias da Silva Universidade Federal de Jataí- UFJ
  • Cecília Nunes Moreira Universidade Federal de Jataí-UFJ https://orcid.org/0000-0001-7629-3290
  • Sidney Aniceto Rezende Júnior Universidade federal de Jataí-UFJ
  • Dalila Almeida Lima Universidade Federal de Jataí-UFJ
  • Micael Seigert Schimmunech Universidade Federal de Jataí-UFJ https://orcid.org/0000-0001-8610-8052

DOI:

https://doi.org/10.35172/rvz.2021.v28.526

Keywords:

Ehrlichiosis, morulae, tick.

Abstract

In Brazil, infections by hemoparasites represent one of the main causes of seeking veterinary assistance in dogs. Infections with bacteria of the order Rickettsiales that include Ehrlichia sp. and Anaplasma sp. has a great participation in these assistances. The objective of this study was to elucidate regional epidemiologic and hematologic aspects of infections by Anaplasma sp. and Ehrlichia sp., often asymptomatic, in dogs in the municipality of Jataí-GO. The data in this study were based on blood samples from dogs treated at the Veterinary Hospital of the Federal University of Jataí, in Jataí, Goiás, between the years 2005 and 2017. Microscopic observation of the presence of Ehrlichia sp. and Anaplasma sp. was used as a positivity criterion. 5,015 animals were treated during this period and 691 (13.78%) of them were positive for the presence of these hemoparasites. Among these animals, 9.23% (463/5015) had morulae from Ehrlichia sp., and 4.37% (219/5015) had morulae typical of Anaplasma sp., while 0.18% (9/5015) had morulae of both species. Females represented 57.89% (400/691) of positive animals and males 42.11% (291/691). 35.02% (242/691) of the animals were less than one year old, 54.13% (374/691) were between 1 and 8 years old, and 10.85% (75/691) were over 8 years old . Females, less than one year old and co-infected, showed the most significant changes in hematological, hematocrit (29%), red blood cell count (3 million / mm3), platelet count (40,000 / mm3) and total blood count leukocytes (16,000 thousand / mm3), showing anemia and thrombocytopenia. Animals infected with Anaplasma sp. and Ehrlichia sp., at the same time, presented more intense thrombocytopenia, evidenced in males between 1 and 8 years old (30,000 / mm3). Infections by Anaplasma sp. caused a severe decrease in the mean red blood cell count, evidenced in males (3 million / mm3) and females under 1 year (3.79 million / mm3).

Author Biographies

Vera Lúcia Dias da Silva, Universidade Federal de Jataí- UFJ

Universidade Federal de Jataí – UFJ – Professora Associada.

Cecília Nunes Moreira, Universidade Federal de Jataí-UFJ

Universidade Federal de Jataí – UFJ – Professora Associada.

Sidney Aniceto Rezende Júnior, Universidade federal de Jataí-UFJ

Universidade Federal de Jataí – UFJ – Técnico Laboratório de Análises Clínicas Veterinárias.

Dalila Almeida Lima, Universidade Federal de Jataí-UFJ

Universidade Federal de Jataí – UFJ – Mestranda no Programa de Pós-Graduação em Biociência Animal.

Micael Seigert Schimmunech, Universidade Federal de Jataí-UFJ

Universidade Federal de Jataí – UFJ – Discente do curso de Medicina Veterinária.

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Published

2021-03-15

How to Cite

1.
Stella AE, Lúcia Dias da Silva V, Nunes Moreira C, Aniceto Rezende Júnior S, Almeida Lima D, Seigert Schimmunech M. EPIDEMIOLOGICAL AND HEMATOLOGICAL ASPECTS OF DOGS WITH EHRLICHIA SP AND ANAPLASMA SP IN JATAÍ-GO. RVZ [Internet]. 2021 Mar. 15 [cited 2024 Jul. 3];28:1-11. Available from: https://rvz.emnuvens.com.br/rvz/article/view/526

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