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Orf in humans: dramatic but benign
1Department of Medicine, University of Toronto, Toronto, Ontario, Canada. steinhartb@smh.toronto.on.ca
CJEM
|March 16, 2007
Summary
Orf, a parapoxvirus infection, can transmit from sheep to humans. This case highlights its potential occurrence in urban settings, even without direct animal contact.
Area of Science:
- Veterinary Medicine
- Human Infectious Diseases
- Zoonotic Infections
Background:
- Orf is a common parapoxvirus infection in sheep and goats, causing characteristic lesions.
- Transmission to humans typically occurs through direct contact, often in rural environments.
- The infection is generally benign and self-limiting.
Purpose of the Study:
- To report a case of human orf infection in an urban setting.
- To highlight the potential for zoonotic disease transmission in non-traditional environments.
- To emphasize the need for increased physician awareness of orf in diverse populations.
Main Methods:
- Case presentation of an inner-city resident with orf.
- Review of clinical presentation and transmission route.
- Discussion of diagnostic and management considerations.
Main Results:
- An immigrant African inner-city housewife developed orf lesions after preparing a sheep's head.
- Lesions resolved spontaneously within one month without specific treatment.
- The case occurred in an urban environment, deviating from typical rural associations.
Conclusions:
- Human orf infections, though rare, can occur in urban populations.
- Physicians should consider orf in the differential diagnosis of skin lesions, even in non-rural patients.
- This case underscores the increasing frequency of encountering previously rare or exclusively rural infections in urban medical practice.
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