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Peer-reviewed veterinary case report

Dog develops skin leishmaniosis despite vaccination with LiESP/QA-21

By A. de Cosmo et al.·Published in Veterinární Medicína·2017·School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy, CZ·View original on DOAJ

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Original publication title: Cutaneous leishmaniosis in a dog vaccinated with LiESP/QA-21: effective or defective vaccine-related immune surveillance? A case report

Species:
dog

Plain-English summary

A 4-year-old dog was brought to the vet because of a nodular skin lesion. Despite being vaccinated against leishmaniosis, tests showed that the lesion contained Leishmania parasites, indicating that the vaccine did not fully protect the dog from this infection. The dog's blood tests were normal, but the presence of the parasites in the skin raised concerns about the effectiveness of the vaccine. This case highlights that even vaccinated dogs can develop leishmaniosis and may require further evaluation and treatment.

People also search for: dog skin lump leishmaniosis · leishmaniosis vaccine effectiveness in dogs · dog skin problems after vaccination

Abstract

Leishmania, an intracellular protozoan parasite, is endemic, widespread and represents a public health problem in most countries of the Mediterranean basin as it is implicated in a wide spectrum of diseases both in humans and animals. Vaccination of canines remains the best control strategy to counteract the progression of active infection for canine disease in areas of the world where transmission to humans is primarily zoonotic. This case report describes the history of a four-year-old dog vaccinated against canine leishmaniosis that was presented to a private clinic for the onset of a nodular skin lesion. Besides normal haematological and biochemical analyses, the histopathological examination of the removed skin lesion revealed the presence of Leishmania amastigotes. The presence of the protozoa in the skin lesion of a vaccinated dog is discussed.

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Original publication on DOAJ: https://doi.org/10.17221/48/2016-VETMED