- Spolidorio M, Labruna M, Zago A, Donatele D, Caliari K, Yoshinari N. Hepatozoon canis infecting dogs in the State of Espírito Santo, southeastern Brazil. Vet Parasitol. 2009;163:357-61 pubmed publisher..sanguineus. Since all infected dogs were found apparently healthy, the pathogenicity of H. canis for dogs in Espírito Santo is yet to be elucidated. ..