Feline Leukemia Virus (FeLV) 
The National Veterinary Laboratory, Inc. introduced the first test for any retrovirus in 1972, the FeLeuk® immunofluorescent antibody (IFA) test for the feline leukemia virus (FeLV). Using this test, Dr. Hardy and his collaborators elucidated most of the FeLV diseases of cats. They then developed a test and removal prevention method which effectively halted the spread of FeLV among cats years before the introduction of the FeLV vaccines. The FeLeuk® test is considered the "Gold Standard" or confirmatory test for all FeLV tests (ELISA in hospital tests).
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FeLeuk® FeLV Negative IFA Test:
No antigen in WBCs |
FeLeuk® FeLV Positive IFA Test:
Antigen in WBCs |
FeLV Information for:
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