Orf is a zoonotic viral skin infection that is contracted from sheep and goats. It is caused by the parapox virus, a large DNA virus that replicates in cellular cytoplasm. Orf mainly infects young lambs and goats who contract the infection from one another or possibly from persistence of the virus in the pastures or sheds.

Orf is primarily a disease of sheep and goats although it has been reported as a natural disease in humans, steenbok and alpacas, chamois and tahrs, reindeer, musk oxen, dogs, cats, mountain goats, bighorn sheep, dall sheep, and red squirrels.

2024年8月13日 · Orf virus in humans is a common and widespread zoonotic viral infection that affects the skin. It is caused by the parapoxvirus and appears worldwide. Orf virus has many names: contagious...

2024年10月3日 · Orf appears as a solitary lesion or as a few lesions on the fingers, hands, or forearms, and orf has even been reported on the face, scalp, and groin. The orf lesion starts as a small,...

2021年11月18日 · Orf is a parapox viral infection of the skin contracted from sheep, especially lambs, and goats. It can be transmitted to humans by direct inoculation from an infected animal or carcass. Orf presents most commonly as a red-blue weeping nodule on the dorsum of a finger. It is self-limiting and generally heals spontaneously within six weeks.

Orf is a skin infection you can get from infected sheep or goats. It most often affects the fingers, hands, forearms or face. It usually clears up without treatment in about 6 weeks. Orf is a virus that mainly affects young lambs and goats. You can get it if you have a sore, cut or scratch that touches an infected animal.

Orf is a viral infection commonly acquired through contact with infected sheep and goats. It is caused by parapoxvirus and is self-resolving. Typically, patients present with lesions on the hands, fingers and forearms where contact with animals and fomites is most common.

Symptoms of orf. In humans, the first sign of orf is a small, red, itchy or painful lump (lesion) that usually appears on the fingers, hands, forearms or face after an incubation period of three to five days. In some cases there may be more than one lesion. The lesion will usually be firm, red or blue in colour and 2-5cm in diameter.

What does Orf look like? Orf lesions are usually seen on the fingers or hands of an individual who has touched the infected animal (e.g. bottle feeding or shearing the animal). Occasionally the orf lesions can also be seen on the face or other parts of the body that may have been in contact with the infected animal.

Orf lesions are generally solitary or few in number. They occur most commonly on the fingers, hands or forearms but can appear on the face. The initial lesion is an irritable firm, red or reddish-blue papule that enlarges to form a flat-topped, blood-tinged blister within a nodule.