Related Experiment Video
Updated: Aug 18, 2026

Whole Genome Sequencing for Rapid Characterization of Rabies Virus Using Nanopore Technology
Published on: August 18, 2023
Human sealpox resulting from a seal bite: confirmation that sealpox virus is zoonotic
C Clark1, P G McIntyre, A Evans
1Department of Dermatology, Ninewells Hospital &Medical School, Dundee DD1 9SY, U.K.
Abstract:
The case of a marine mammal technician who sustained a seal-bite to the hand that produced a lesion clinically very similar to orf is described. Sequence analysis of the viral DNA amplified from the lesion by the polymerase chain reaction indicated that it was sealpox virus in origin. This is the first report providing unequivocal evidence that sealpox may be transmitted to humans and causes lesions very similar to orf.
Insights
Sealpox virus can infect humans, causing skin lesions that resemble orf. This case confirms sealpox transmission to people, highlighting a novel zoonotic viral risk.
Area of Science:
- Veterinary Virology
- Human Infectious Diseases
- Zoonotic Infections
Background:
- Orf virus (a parapoxvirus) commonly causes contagious ecthyma in sheep and goats.
- Orf lesions in humans typically present as self-limiting papules or nodules.
Observation:
- A marine mammal technician developed a hand lesion after a seal bite.
- The lesion's clinical presentation was highly similar to orf.
Findings:
- Viral DNA sequencing confirmed the lesion was caused by sealpox virus.
- This is the first documented case of sealpox virus transmission to humans.
Implications:
- Sealpox virus represents a potential zoonotic pathogen.
- Understanding sealpox in humans is crucial for marine mammal handlers and public health.
- This finding expands the known host range for parapoxviruses.
Related Concept Videos
Rabies
Viral Recombination
Toxoplasmosis
