Identification, occurrence and clinical findings of canine hemoplasmas in southern Brazil

Stella de Faria Valle, Joanne B. Messick, Andrea Pires dos Santos, Luiz Carlos Kreutz, Naila Cristina Blatt Duda, Gustavo Machado, Luis Gustavo Corbellini, Alexander Welker Biondo, Felix Hilario Diaz González

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Hemoplasmas are ubiquitous pleomorphic and epicellular bacteria detected in erythrocytes in several species. In Brazil, studies on hemoplasmas have not included information on occurrence, clinical signs, and risk factors in dogs. This paper investigates the occurrence of hemoplasmas in dogs, focusing on risk factors and clinical status. Conventional PCR for the four types of canine hemoplasmas was performed in 331 blood samples collected from dogs clinically treated at a teaching veterinary hospital. Of all samples, 17/331 (5.1%) were positive for Mycoplasma haemocanis and 6/331 (1.8%) were positive for a '. Candidatus Mycoplasma haemominutum-like' organism. Risk factors included the presence of vectors, old age, dog bite wounds, and neoplastic diseases. In the multivariate analysis, a 4.40 odds ratio in dogs with vector-borne diseases indicated risk for hemoplasmosis. There was correlation between hemoplasma infection and neoplastic disease, suggesting that neoplastic conditions are a risk factor for hemoplasma infection in dogs.

Original languageEnglish (US)
Pages (from-to)259-265
Number of pages7
JournalComparative Immunology, Microbiology and Infectious Diseases
Issue number4
StatePublished - Sep 1 2014

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd.

Copyright 2020 Elsevier B.V., All rights reserved.


  • 'Candidatus Mycoplasma haemominutum'
  • Hemotropic mycoplasmas
  • Mycoplasma haemocanis
  • Neoplastic disease
  • Polymerase chain reaction

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