In vivo lymphocyte tropism of feline immunodeficiency virus

In vivo lymphocyte tropism of feline immunodeficiency virus.

Feline immunodeficiency virus (FIV) infection in the cat is similar to human immunodeficiency virus type 1 infection in causing a selective reduction in CD4+ cell numbers, leading to inversion of the CD4+/CD8+ ratio. To determine whether FIV, similar to human immunodeficiency virus type 1, has a tropism for CD4+ cells, we examined the in vitro and in vivo susceptibilities of feline lymphocyte s...

Feline Immunodeficiency Viruses In Vivo Monocyte Tropism of Pathogenic

A determinant of feline immunodeficiency virus involved in Crandell feline kidney cell tropism.

Viral progeny of the molecular clone 19k1 of feline immunodeficiency virus (FIV) can infect feline T-cells but not Crandell feline kidney (CrFK) cells. In contrast, the biological isolate FIV-AM6c, which was CrFK adapted by co-cultivation of FIV-AM6 infected thymocytes with CrFK cells, can infect both thymocytes and CrFK cells. The envelope gene of FIV-AM6c was amplified by polymerase chain rea...

Feline leukemia virus and feline immunodeficiency virus.

Ophthalmic manifestations of FeLV or FIV infection can occur in all ocular tissues and may be manifestations of direct viral effects or secondary to viral-related malignant transformation. Additionally, the manifestations of common feline ophthalmic pathogens may be more severe and poorly responsive to therapy because of the immunosuppressive effects of FeLV or FIV infection. Prompt diagnosis o...

Feline leukemia virus & feline immunodeficiency virus.

RISK OF INFECTION/EXPOSURE The risk of infection is higher in younger animals and cats that are in contact with multiple cats (strays). Generally, Feline Leukemia Virus (FeLV) is spread by casual contact between cats although as they age, resistance to infection develops. Feline Immunodeficiency Virus (FIV) is spread more commonly through bite wounds or through sexual behaviour. Exposure occurs...