Leprosy in the United States. Risks, recognition, regimens, resources.

Area of Science:

• Infectious Diseases
• Dermatology
• Public Health

Background:

• Leprosy (Hansen's disease) incidence is increasing in the United States.
• The disease is predominantly observed in immigrants from developing nations and their close contacts.
• Migration patterns have led to a wider geographical distribution of leprosy within the US.

Purpose of the Study:

• To highlight the re-emergence of leprosy in the US.
• To emphasize the importance of physician awareness for early diagnosis.
• To outline current diagnostic and treatment strategies for leprosy.

Main Methods:

• Clinical observation and case review.
• Diagnostic approach emphasizing punch biopsy of skin lesions.
• Management through multi-drug therapy and specialized clinics.

Main Results:

• Leprosy is increasingly diagnosed in foreign-born individuals presenting with dermatological or neurological symptoms.
• Punch biopsy is identified as the most practical diagnostic tool for both multibacillary and paucibacillary leprosy.
• Dapsone resistance necessitates multi-drug treatment regimens.

Conclusions:

• Primary care physicians need a high index of suspicion for leprosy in at-risk populations.
• Prompt diagnosis through skin biopsy and appropriate multi-drug therapy are essential.
• Referral to Hansen's disease clinics ensures specialized long-term management and consultation is available nationwide.