Biomaterial Database

Demodicosis in black bears (Ursus americanus) from Florida. 1993

D J Forrester, and M G Spalding, and J B Wooding

Department of Infectious Diseases, College of Veterinary Medicine, University of Florida, Gainesville 32610.

Demodicosis was diagnosed in five black bears (Ursus americanus) from north-central Florida. The first bear examined, a 5-yr-old male, had severe alopecia except for the dorsal neck, paws, and ears. The skin was characterized by moderate orthokeratotic hyperkeratosis, and mild to moderate follicular hyperkeratosis. Superficial dermatitis, follicular pustules, and epidermal pustules were present, but rare. Specimens of Demodex sp. were seen most commonly within hair follicles devoid of hair and at the infundibulum of sebaceous glands. Four additional bears from the same area also had some degree of alopecia and skin scrapings were positive for Demodex sp. This mite may be common, although its prevalence is not known.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008924	Mite Infestations	Infestations with arthropods of the subclass ACARI, superorder Acariformes.	Acariasis,Mange,Infestation, Mite,Infestations, Mite,Mite Infestation
D008925	Mites	Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants.	Acarus,Mite
D005260	Female		Females
D005431	Florida	State bounded on east by the Atlantic Ocean, on the south by the Gulf of Mexico, on the west by Alabama and on the north by Alabama and Georgia.
D006197	Hair	A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body.	Fetal Hair,Hair, Fetal,Lanugo,Fetal Hairs,Hairs,Hairs, Fetal
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001503	Ursidae	The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails.	Ailuropoda,Bears,Black Bears,Giant Pandas,Grizzly Bears,Pandas, Giant,Pandas, Greater,Polar Bears,Spectacled Bear,Tremarctos,Ursus,Bear,Bear, Black,Bear, Grizzly,Bear, Polar,Bear, Spectacled,Bears, Black,Bears, Grizzly,Bears, Polar,Bears, Spectacled,Black Bear,Giant Panda,Greater Panda,Greater Pandas,Grizzly Bear,Panda, Giant,Panda, Greater,Polar Bear,Spectacled Bears
D012867	Skin	The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.