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Visceral leishmaniasis: immunology and prospects for a vaccine
1Centre for Immunology and Infection, Hull York Medical School and Department of Biology, University of York, York, UK. paul.kaye@york.ac.uk
Insights
Human visceral leishmaniasis (HVL), a severe parasitic disease, causes over 50,000 deaths annually. This review covers HVL immunology and current vaccine development strategies.
Area of Science:
- Tropical Medicine
- Immunology
- Parasitology
- Vaccinology
Background:
- Human visceral leishmaniasis (HVL) is the most severe form of leishmaniasis, a group of neglected tropical diseases caused by Leishmania parasites.
- Primarily caused by Leishmania donovani and Leishmania infantum/chagasi, HVL results in over 50,000 fatalities annually.
- Current drug treatments for HVL are expensive, and drug resistance is a growing concern.
Purpose of the Study:
- To review the current understanding of the immunology of human visceral leishmaniasis.
- To discuss the progress and status of vaccine development against HVL.
Main Methods:
- Comprehensive literature review of existing research on HVL immunology.
- Analysis of current vaccine development approaches and their efficacy.
Main Results:
- Detailed examination of the host immune response in HVL.
- Overview of various vaccine candidates and strategies being explored.
- Identification of challenges and opportunities in HVL vaccine development.
Conclusions:
- A deeper understanding of HVL immunology is crucial for effective vaccine design.
- Vaccine development remains a critical but challenging area for controlling HVL.
- Further research is needed to overcome existing hurdles and develop a viable HVL vaccine.
Abstract:
Human visceral leishmaniasis (HVL) is the most severe clinical form of a spectrum of neglected tropical diseases caused by protozoan parasites of the genus Leishmania. Caused mainly by L. donovani and L. infantum/chagasi, HVL accounts for more than 50 000 deaths every year. Drug therapy is available but costly, and resistance against several drug classes has evolved. Here, we review our current understanding of the immunology of HVL and approaches to and the status of vaccine development against this disease.
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