Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.
a contagious pustular viral dermatitis of sheep, sometimes communicable to humans.
A specific disease of sheep and goats, caused by the orf virus, family Poxviridae. This virus is transmissible to humans and characterized by vesiculation and ulceration of the infected site.
[O.E. orfcwealm, murrain, fr. orf, cattle, + cwealm, destruction]
orf(orf) a contagious pustular viral dermatitis of sheep, communicable to humans.
a contagious viral skin disease acquired from infected sheep and goats, characterized by painless vesicles that may progress to red, weeping nodules and finally to crusting and healing. Fingers, hands, wrist, and face are common sites. Treatment is not necessary because the condition is self-limited, and active infection results in immunity. Also called contagious pustular dermatitis.
Agent Orf virus is similar to that causing milker’s nodes
ORFOral rehydration fluid
orfEcthyma contagiosum A benign self-limited parapoxvirus infection acquired by handling infected sheep and goat skins and flesh which, in young animals, causes watery warty lesions of the cornea, mucous membranes and lips; in canines, orf-orf Clinical Hypertrophic bullae at inoculation site which, in immunocompromised Pts, may be very large Agent Orf virus is similar to that causing milker's nodes
orfA pox virus infection of sheep and goats that occasionally spreads to humans causing a fluid-filled blister on the hand or arm that may persist for weeks.
ORFsee OPEN READING FRAME.
formalin40% formaldehyde solution; used as a disinfectant and antiseptic at 1:200-1:2000 dilution
diseasepathogenic entity characterized by an identifiable aetiological agent, group of signs and symptoms and/or consistent anatomical alterations; see syndrome
hand, foot and mouth disease; orf highly contagious viral skin condition, characterized by erythematous, vesicular eruptions of fingers, toes, palms and soles, with associated fever, and painful ulcers of tongue and mucous membranes
see contagious ecthyma.