Peer-reviewed veterinary case report
Leishmania Q protein vaccine protects dogs without adjuvant
By Carcelén, J et al.·Published in Vaccine·2009·LeishmanCeres Laboratory (GLP Compliance certificated), Spain·View original on PubMed →
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Original publication title: The chimerical multi-component Q protein from Leishmania in the absence of adjuvant protects dogs against an experimental Leishmania infantum infection.
- Species:
- dog
Plain-English summary
A group of dogs was vaccinated with a special protein to see if it could protect them from Leishmania infection, which can cause serious health issues. The vaccinated dogs showed fewer symptoms and had healthier organs compared to those that did not receive the vaccine. Most of the vaccinated dogs cleared the parasites from their systems, while many in the control group still had signs of infection. This suggests that the vaccine could be an effective way to help protect dogs from this disease.
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Abstract
The protective potential against Leishmania infection of the Leishmania chimerical Q protein administered as a single (Q) or double dose (Q+Q) without adjuvant was analyzed in a double-blind placebo controlled experiment in dogs. During vaccination the protein induced an intense early anti-Q response but no reactivity against total Leishmania infantum proteins was detected. Several end-points were taken into consideration. In the vaccinated animals the amount and intensity of clinical symptoms was lower than in the control group. Pathological signs of disease were observed in liver, kidney and spleen of all dogs from the control group in contrast to the normal appearance of the organs of the vaccinated animals. Vaccination was able to induce parasite clearance in most dogs. Only 1/7 dog was parasite DNA positive in skin in the Q group in contrast to 6/7 dogs in control and 4/7 in Q+Q. Significant anti-SLA clearance was observed in the vaccinated animals at the end of the study. Differences between control and vaccinated animals were also observed at the biochemical level, DTH and nitrite oxide production.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/19666153/