Case–control study of canine infection by a newly recognised Babesia microti-like piroplasm

Guitián, Francisco; Camacho, Ángel; Telford, Sam R.

doi:10.1016/s0167-5877(03)00164-8

Cited by 34 publications

(20 citation statements)

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“…A severe regenerative haemolytic anemia and moderate to severe thrombocytopenia are common findings among dogs infected with the B. microti -like piroplasm [60,61]. In the present report, the three dogs had regenerative anaemia, based on reticulocyte count (performed only for the bitch), presence of polychromasia, anisocytosis and nucleated RBC.…”

Section: Discussionsupporting

confidence: 46%

Babesiosis due to the canine Babesia microti-like small piroplasm in dogs - first report from Portugal and possible vertical transmission

Simões¹,

Cardoso

Araújo³

et al. 2011

Parasites Vectors

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BackgroundCanine babesiosis (or piroplasmosis) is endemic in northern Portugal, but molecularly confirmed cases of infection with small piroplasms have not been reported in the country. Three German shepherd dogs - a bitch and its 2-month old pup and an unrelated male - clinically suspected of piroplasmosis were assessed for babesial infection.ResultsParasitemia with small piroplasms was detected by microscopy in two dogs. All three dogs were positive by PCR and the Babesia microti-like small piroplasm (syn. Theileria annae) was identified by DNA sequencing. These are the first confirmed cases of babesiosis caused by the B. microti-like piroplasm both in dogs from Portugal and in dogs suspected of clinical piroplasmosis outside of Spain.ConclusionsAlthough the bitch and the male had visited neighboring Galicia (northwestern Spain), where the disease is endemic, incursion of this piroplasm into northern Portugal is evident and infection of the non-traveled pup was due to either vertical transmission or autochthonous tick infection.

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Section: Discussionsupporting

confidence: 46%

Babesiosis due to the canine Babesia microti-like small piroplasm in dogs - first report from Portugal and possible vertical transmission

Simões¹,

Cardoso

Araújo³

et al. 2011

Parasites Vectors

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“…currently known to cause disease in domestic dogs is the B. microti-like, T. annae (Zahler et al, 2000;Guitián et al, 2003;Camacho et al, 2004;Camacho Garcia, 2006), which has only been reported to occur in Spain. T. annae has been reported to cause a disease characterized by apathy, fever, and anaemia (Zahler et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…Although Goethert and Telford (2003) did not propose the name B. annae, they questioned the use of Theileria as a genus name since no evidence was presented by Zahler et al (2000) for a preerythrocytic or lymphocyte-infecting stage, nor was there any evidence for the absence of transovarial transmission in ticks (Goethert and Telford, 2003). The provisional assignment to the genus Theileria reflects a controversial argument by some parasitologists working with piroplasms that the small Babesia should be removed from the genus Babesia (Guitián et al, 2003). In the context of our report we will, therefore, refer to the said parasite as T. annae.…”

Section: Introductionmentioning

confidence: 99%

Detection of a Theileria species in dogs in South Africa

Matjila

Leisewitz

Oosthuizen

et al. 2008

Veterinary Parasitology

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A Theileria species was detected by PCR in blood samples collected from dogs in the Pietermaritzburg area and was also found in dogs presented at the Outpatients Clinic of the Onderstepoort Veterinary Academic Hospital (OVAH), in the Pretoria area, South Africa. In the Pietermaritzburg area, 79 of the 192 samples were positive, while 3 out of 1137 of the Onderstepoort samples were positive. Three positive samples from Pietermaritzburg were co-infected with Ehrlichia canis. PCR positive samples were further analysed by the Reverse Line Blot (RLB) and sequence analysis. Phylogenetic analysis of the 18S rRNA full-length gene sequences of one sample (VT12) from Pietermaritzburg and two samples from OVAH (BC281 and BC295) revealed a close relationship with sequences of Theileria species (sable). Clinical signs of the dogs that were examined at Pietermaritzburg and OVAH included an immune-mediated condition with severe thrombocytopenia. These findings identify a Theileria sp. in dogs for the first time in South Africa and add yet another microorganism to the growing list of haemoprotozoan parasites infecting dogs worldwide. The clinical significance of this infection in dogs is poorly resolved. #

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“…In dogs, it was traditionally assumed that the only Babesia species causing disease were Babesia canis and Babesia gibsoni, but recently published reports (1,5,7) demonstrate that a different (Babesia microti-like) piroplasm can parasitize dogs.…”

mentioning

confidence: 99%

“…In an extensive series of case studies from Galicia, Spain (1,5), the agent was also definitively identified by molecular phylogenetic methods as the B. microti-like parasite. Analysis of the rDNA sequences indicates that the Spanish isolate is closely related, but not identical, to the reference B. microti strains isolated in Japan and the United States.…”

mentioning

confidence: 99%

Roles of the Maltese Cross Form of Babesia microti in the Development of Parasitemia in B. microti Infection

Camacho¹

2004

Infect Immun

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Case–control study of canine infection by a newly recognised Babesia microti-like piroplasm

Cited by 34 publications

References 9 publications

Babesiosis due to the canine Babesia microti-like small piroplasm in dogs - first report from Portugal and possible vertical transmission

Babesiosis due to the canine Babesia microti-like small piroplasm in dogs - first report from Portugal and possible vertical transmission

Detection of a Theileria species in dogs in South Africa

Roles of the Maltese Cross Form of Babesia microti in the Development of Parasitemia in B. microti Infection

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