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Diffuse cutaneous leishmaniasis in Mexico.

O Velasco1, S J Savarino, B C Walton

  • 1Instituto de Salubridad y Enfermedades Tropicales, Mexico, D.F.

The American Journal of Tropical Medicine and Hygiene
|September 1, 1989
PubMed
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Diffuse cutaneous leishmaniasis (DCL) cases in Mexico were identified as Leishmania mexicana mexicana. Some patients showed mucosal involvement, indicating potential spread and clinical significance.

Area of Science:

  • * Medical Parasitology
  • * Infectious Diseases Epidemiology

Background:

  • * Leishmaniasis is a significant public health concern in tropical and subtropical regions.
  • * Diffuse cutaneous leishmaniasis (DCL) is a rare, severe form of leishmaniasis.
  • * Understanding the causative species and their geographic distribution is crucial for control.

Observation:

  • * Six cases of diffuse cutaneous leishmaniasis (DCL) were identified across Mexico.
  • * Half of the DCL patients exhibited nasopharyngeal mucosal involvement.
  • * Isolates from DCL patients were consistently identified as Leishmania mexicana mexicana.

Findings:

  • * Leishmania mexicana mexicana was identified as the causative agent in all DCL cases.
  • * Endemic cutaneous leishmaniasis in Tabasco state also involved L. mexicana mexicana.

Related Experiment Videos

  • * An isolate of Leishmania braziliensis braziliensis was incidentally found in a chiclero ulcer case.

    • Implications:

    • * The findings suggest L. mexicana mexicana can cause severe DCL in Mexico.
    • * Nasopharyngeal involvement highlights the potential for disseminated disease.
    • * Co-circulation of different Leishmania species necessitates accurate diagnostics and targeted interventions.