T Mohanapriya¹* and R Ramprabhu²

¹Assistant Professor, Veterinary Clinical Complex, Veterinary College and Research Institute, Tirunelveli, Tamil Nadu Veterinary and Animal Sciences University (TANUVAS), India
²Professor and Head, Veterinary Clinical Complex, Veterinary College and Research Institute, Tirunelveli, Tamil Nadu Veterinary and Animal Sciences University (TANUVAS), India

*Corresponding Author: T Mohanapriya, Assistant Professor, Veterinary Clinical Complex, Veterinary College and Research Institute, Tirunelveli, Tamil.

Received: May 30, 2023; Published: June 22, 2023

Abstract

This study presents about the pathogenicity of Hepatozoon canis in native dogs of southern districts of Tamil Nadu, India. During the study period from January 2020 to December 2020, a total of 275 Chippiparai dogs were screened for haemoparasitic diseases, out of which seven cases of H. canis were recorded. Among those seven cases, three were concurrent infection with transmissible venereal tumour, one with Babesia canis and three were solitary infections. The clinical signs were mostly non-specific with mild to moderate fever, anorexia and lethargy. The major haematological findings in these cases were severe anaemia in B. canis infection and rest of the cases showed neutrophilic leucocytosis. In one case, more the 30 per cent neutrophils were infected with gamonts of H. canis. The morphology of H. canis is altered from elliptical to round or oval due to chemotherapy with vincristine in Transmissible venereal tumour (TVT) affected dogs.

Keywords: Anaemia; Chippiparai Dogs; H. canis; Morphological Changes; Neutrophilic Leucocytosis

References

1. James SP. On parasite found in the white corpuscules of the blood of dogs. Scientific Memoirs by the Officers of the Medical and Sanitary Departments of the Government of India 14(1905):1-12.
2. Baneth Gad., et al. “Canine Hepatozoonosis: Two Disease Syndromes Caused by Separate Hepatozoon Spp”. Trends in Parasitology 1 (2003): 27-31.
3. Mohanapriya T., et al. “Clinico-pathological Diagnosis of Transmissible Venereal Tumour With Hepatozoon Canis and Babesia Canis Infection in a Chippiparai Dog”. Indian Journal of Animal Research (2020).
4. Baneth Gad and Benjamin Weigler. “Retrospective Case-Control Study of Hepatozoonosis in Dogs in Israel”. Journal of Veterinary Internal Medicine6 (1997): 365-370.
5. Chhabra Sushma., et al. "Retrospective Study of Clinical and Hematological Aspects Associated With Dogs Naturally Infected by Hepatozoon Canis in Ludhiana, Punjab, India”. Asian Pacific Journal of Tropical Biomedicine 6 (2013): 483-486.
6. Kaur Paramjit., et al. “Para-clinico-pathological Observations of Insidious Incidence of Canine Hepatozoonosis From a Mongrel Dog: A Case Report”. Journal of Parasitic Diseases, Medknow (2012).
7. O’Dwyer Lucia Helena., et al. “Prevalence, Hematology and Serum Biochemistry in Stray Dogs Naturally Infected by Hepatozoon Canis in São Paulo”. Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 4 (2006):  688-90.
8. Eiras Diego Fernando., et al. “First Molecular Characterization of Canine Hepatozoonosis in Argentina: Evaluation of Asymptomatic Hepatozoon Canis Infection in Dogs From Buenos Aires”. Veterinary Parasitology 3-4 (2007):  275-279.
9. Voyvoda H., et al. "Clinical Hepatozoon canis infection in a dog in Turkey”. Journal of Small Animal Practice12 (2004): 613-617.
10. Harikrishnan T J., et al. "Observations on the development of Hepatozoon canis in a dog”. Journal of Veterinary Parasitology1 (2008): 35-40.
11. Jittapalapong Sathaporn., et al. "Detection of Hepatozoon Canisin Stray Dogs and Cats in Bangkok, Thailand”. Annals of the New York Academy of Sciences 1 (2006):  479-488.
12. Banerjee P., et al. "Concurrent Hepatozoonosis, Monocytic and Granulocytic Ehrlichiosis in a Dog”. Journal of Veterinary Parasitology 1 (2008):  9-11.
13. Vojta Lea., et al. "Haematological and biochemical parameters of canine hepatozoonosis in Croatia”. Veterinarski Arhiv4 (2012): 359-370.
14. Eljadar Mohamed SM., et al. "Morphometric Variations in Gametocytes of Hepatozoon Canis From Naturally Infected Dogs”. Journal of Parasitic Diseases, Medknow (2012).
15. Ibrahim Najume DG., et al. "Neutrophil myeloperoxidase deficiency associated with canine hepatozoonosis." International Journal for Parasitology8 (1989): 915-918.

Citation

Citation: T Mohanapriya and R Ramprabhu. “Hepatozoon canis - An Insidious Pathogen and its Morphological Alterations in Chippiparai Dogs".Acta Scientific Veterinary Sciences 5.7 (2023): 96-99.

Copyright

Copyright: © 2023 T Mohanapriya and R Ramprabhu. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.