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1Assistant Professor and Clinical Microbiologist, Department of Microbiology, College of Medicine, King Khalid University, Abha, Saudi Arabia.
Cutaneous leishmaniasis (CL) is a parasitic disease affecting millions globally. This research details its transmission, causative agents like Leishmania major and Leishmania tropica, and geographical distribution, impacting disease control strategies.
Area of Science:
- Tropical Medicine and Infectious Diseases
- Parasitology and Zoonotic Diseases
Background:
- Cutaneous leishmaniasis (CL) is a significant parasitic disease with a complex biphasic life cycle.
- Transmitted by phlebotomine sandflies, it affects approximately 300 million people worldwide across over 90 countries.
Observation:
- CL manifests in several forms, including classical cutaneous, mucocutaneous, and post-kala-azar dermal leishmaniasis.
- In the Old World, L. major (rodent reservoir) causes CL at low altitudes, while L. tropica (no reservoir) is found in swampy and high-altitude regions.
- L. aethiopica and L. major are implicated in disseminated ulcers in regions including Saudi Arabia, Iran, India, and Ethiopia.
Findings:
- The primary electrophoretic isozyme pattern (Zymodeme) identified in Saudi Arabia is LON-4.
- Understanding the specific Leishmania species and their reservoirs is crucial for targeted interventions.
Implications:
- This epidemiological data is vital for developing effective control and prevention strategies for cutaneous leishmaniasis.
- Identifying specific zymodemes like LON-4 aids in tracking parasite strains and understanding transmission dynamics in endemic areas.
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