Cutaneous leishmaniasis in North Dakota

Area of Science:

• Infectious Diseases
• Parasitology
• Dermatology

Background:

• Autochthonous cutaneous leishmaniasis in the US is primarily associated with Leishmania mexicana.
• Previous reports have localized these infections to Texas and Oklahoma.

Observation:

• A pediatric case of cutaneous leishmaniasis was identified.
• The infection was acquired in North Dakota, extending the known geographic range.
• The etiological agent was identified as belonging to the Leishmania donovani species complex.

Findings:

• This case represents the first report of autochthonous cutaneous leishmaniasis acquired in North Dakota.
• It is also the first documented instance of Leishmania donovani species complex causing cutaneous leishmaniasis in the United States.
• The findings challenge the previously understood geographic distribution and species spectrum of indigenous leishmaniasis in the US.

Implications:

• This discovery necessitates a reevaluation of the geographic boundaries and potential reservoirs for leishmaniasis in the United States.
• Public health awareness and diagnostic capabilities should be enhanced in non-endemic regions.
• Further research is needed to understand the transmission dynamics and ecological factors contributing to this expanded distribution.