Feline immunodeficiency virus (FIV) is one of the most common and consequential infectious diseases of cats around the world. In infected cats, FIV attacks the immune system, leaving the cat vulnerable to many other infections.

The main cellular target for FIV is the CD4+ T cell. However, FIV also infects CD8+ T cells, B cells, macrophages, and dendritic cells, microglia, and astrocytes. The subsequent effects of the virus on the immune system are complex, incompletely understood, and seem to result in both immune suppression and immune activation.

FIV compromises the immune system of cats by infecting many cell types, including CD4+ and CD8+ T lymphocytes, B lymphocytes, and macrophages. FIV can be tolerated well by cats, but can eventually lead to debilitation of the immune system in its feline hosts by the infection and exhaustion of T-helper (CD4+) cells.

Feline immunodeficiency virus, or cat FIV, is a retrovirus infection first discovered in cats in the U.S. The virus is often referred to as cat HIV or cat AIDS because it has a...

Virologists classify FIV as a lentivirus, a slow-acting organism that is in the same viral family as the potentially deadly human immunodeficiency virus (HIV), says Dr. Levy, associate professor of small animal internal medicine at the University of Florida's College of Veterinary Medicine.

2022年7月12日 · Part 1 covers transmission and testing, and part 3 covers prevention and support. The three phases of infection with FIV are acute, asymptomatic and progressive. The acute phase occurs 1-3 months after infection. The virus is carried to lymph nodes, reproduces in white blood cells and spreads throughout the body.

2009年1月1日 · Feline immunodeficiency virus (FIV) is a retrovirus of the genus Lentivirus that is closely related to HIV; however, humans are not susceptible to the cat virus, which occurs in 5 subtypes (clades) worldwide. Seroprevalence is highly variable geographically, with estimates of 1 to 14% in cats with no clinical signs and up to 44% in sick cats.

Feline immunodeficiency virus (FIV) is a lentivirus with many similarities to human immunodeficiency virus (HIV). A critical difference between FIV‐associated disease in cats and HIV‐associated disease in humans stems from the length of time that cats have lived with FIV.

Feline immunodeficiency virus (FIV) is a ubiquitous pathogen of domestic cats. Transmission occurs primarily via biting during territorial fights and results in persistent lifelong infection. Although progressive decline of CD4+T cells is a hallmark of FIV infection, clinical manifestations in naturally infected cats are often inapparent.

Feline immunodeficiency virus (FIV) decreases the function of the immune system of domestic and wild cats. FIV-infected cats are more like to acquire other types of infections that can affect other parts of the body, including the gums, mouth, digestive tract, urinary tract, and skin.