Search Search Search Topic Shelter Medicine (-) Specific Medical Conditions Active FiltersSpecific Medical Conditions Group 9 Clear All Feline Immunodeficiency Virus (FIV) Learn about Feline Immunodeficiency Virus (FIV), including prevention, clinical signs, transmission, diagnosis, treatment, and management. Feline Leukemia Virus (FeLV) Learn more about Feline Leukemia Virus (FeLV), a viral infection that affects shelter cats.