Educational Articles

Infectious Diseases

  • The uvea is the part of the eye made up of the iris, the ciliary body and the choroid. The iris is the pigmented or colored membrane behind the cornea (clear outer surface of the eye).

  • Valley Fever is a disease caused by a fungus known as Coccidiodes immitis. Although the proper name for this disease is "coccidioidomycosis", it is most often called Valley Fever, "California disease", "Desert rheumatism", or "San Joaquin Valley Fever".

  • The West Nile Virus (WNV) is transmitted by the bite of a mosquito (primarily Culex species) that is infected with the virus. The mosquitoes become infected after biting birds carrying the West Nile Virus.

  • Whipworms are intestinal parasites that are about 1/4 inch (6 mm) long. They live in the intestinal tract of dogs where they cause severe irritation. Whipworm infection results in watery, bloody diarrhea, weight loss, and general debilitation. Any dog with chronic large bowel diarrhea should be suspected to have whipworms, even if the stool sample was negative. Whipworms are far less common today than in previous years, because of widespread use of modern heartworm prevention products.

  • Yeast dermatitis or Malassezia dermatitis is caused by the fungus Malassezia pachydermatis. It is an extremely common cause of skin disease in dogs.